diff --git a/src/Protocol/ActivityPub/Processor.php b/src/Protocol/ActivityPub/Processor.php
index c49a2da686..6e81cb767f 100644
--- a/src/Protocol/ActivityPub/Processor.php
+++ b/src/Protocol/ActivityPub/Processor.php
@@ -223,7 +223,7 @@ class Processor
 		Post\History::add($item['uri-id'], $item);
 		Item::update($item, ['uri' => $activity['id']]);
 
-		DBA::delete('inbox-queue', ['url' => $item['uri']]);
+		Receiver::removeFromQueue($activity);
 
 		if ($activity['object_type'] == 'as:Event') {
 			$posts = Post::select(['event-id', 'uid'], ["`uri` = ? AND `event-id` > ?", $activity['id'], 0]);
@@ -428,6 +428,7 @@ class Processor
 
 		Logger::info('Deleting item', ['object' => $activity['object_id'], 'owner'  => $owner]);
 		Item::markForDeletion(['uri' => $activity['object_id'], 'owner-id' => $owner]);
+		Receiver::removeFromQueue($activity);
 	}
 
 	/**
@@ -892,7 +893,7 @@ class Processor
 			$item_id = Item::insert($item);
 			if ($item_id) {
 				Logger::info('Item insertion successful', ['user' => $item['uid'], 'item_id' => $item_id]);
-				DBA::delete('inbox-queue', ['url' => $item['uri']]);
+				Receiver::removeFromQueue($activity);
 			} else {
 				Logger::notice('Item insertion aborted', ['user' => $item['uid']]);
 			}
@@ -1351,6 +1352,7 @@ class Processor
 
 		Logger::info('Updating profile', ['object' => $activity['object_id']]);
 		Contact::updateFromProbeByURL($activity['object_id']);
+		Receiver::removeFromQueue($activity);
 	}
 
 	/**
@@ -1379,6 +1381,7 @@ class Processor
 		DBA::close($contacts);
 
 		Logger::info('Deleted contact', ['object' => $activity['object_id']]);
+		Receiver::removeFromQueue($activity);
 	}
 
 	/**
diff --git a/src/Protocol/ActivityPub/Receiver.php b/src/Protocol/ActivityPub/Receiver.php
index b55636a30e..11e7151e1e 100644
--- a/src/Protocol/ActivityPub/Receiver.php
+++ b/src/Protocol/ActivityPub/Receiver.php
@@ -98,19 +98,6 @@ class Receiver
 
 		$ldactivity = JsonLD::compact($activity);
 
-		$http_signer = HTTPSignature::getSigner($body, $header);
-		if ($http_signer === false) {
-			Logger::warning('Invalid HTTP signature, message will be discarded.');
-			return;
-		} elseif (empty($http_signer)) {
-			Logger::info('Signer is a tombstone. The message will be discarded, the signer account is deleted.');
-			return;
-		} else {
-			Logger::info('Valid HTTP signature', ['signer' => $http_signer]);
-		}
-
-		self::enqueuePost($ldactivity, $http_signer, $uid);
-
 		$actor = JsonLD::fetchElement($ldactivity, 'as:actor', '@id') ?? '';
 
 		$apcontact = APContact::getByURL($actor);
@@ -125,6 +112,17 @@ class Receiver
 			APContact::unmarkForArchival($apcontact);
 		}
 
+		$http_signer = HTTPSignature::getSigner($body, $header);
+		if ($http_signer === false) {
+			Logger::warning('Invalid HTTP signature, message will be discarded.');
+			return;
+		} elseif (empty($http_signer)) {
+			Logger::info('Signer is a tombstone. The message will be discarded, the signer account is deleted.');
+			return;
+		} else {
+			Logger::info('Valid HTTP signature', ['signer' => $http_signer]);
+		}
+
 		$signer = [$http_signer];
 
 		Logger::info('Message for user ' . $uid . ' is from actor ' . $actor);
@@ -158,32 +156,45 @@ class Receiver
 		}
 
 		$fetchQueue = new FetchQueue();
-		self::processActivity($fetchQueue, $ldactivity, $body, $uid, $trust_source, true, $signer);
+		self::processActivity($fetchQueue, $ldactivity, $body, $uid, $trust_source, true, $signer, $http_signer);
 		$fetchQueue->process();
 	}
 
-	private static function enqueuePost(array $ldactivity = [], string $signer, int $uid)
+	private static function enqueuePost(array $ldactivity = [], string $type, int $uid, string $http_signer): array
 	{
-		if (empty($ldactivity['as:object'])) {
-			return;
-		}
-
-		$url = JsonLD::fetchElement($ldactivity, 'as:object', '@id');
 		$fields = [
-			'url' => $url,
-			'in-reply-to-url' => JsonLD::fetchElement($ldactivity['as:object'], 'as:inReplyTo', '@id'),
-			'signer' => $signer,
-			'type' => JsonLD::fetchElement($ldactivity, '@type'),
-			'object-type' => JsonLD::fetchElement($ldactivity['as:object'], '@type'),
+ 			'activity-id' => $ldactivity['id'],
+			'object-id' => $ldactivity['object_id'],
+			'type' => $type,
+			'object-type' => $ldactivity['object_type'],
 			'activity' => json_encode($ldactivity, JSON_UNESCAPED_SLASHES | JSON_UNESCAPED_UNICODE | JSON_PRETTY_PRINT),
 			'received' => DateTimeFormat::utcNow(),
 		];
-		DBA::insert('inbox-queue', $fields, Database::INSERT_IGNORE);
 
-		$queue = DBA::selectFirst('inbox-queue', ['id'], ['url' => $url]);
-		if (!empty($queue['id'])) {
-			DBA::insert('inbox-queue-receiver', ['queue-id' => $queue['id'], 'uid' => $uid], Database::INSERT_IGNORE);
+		if (!empty($ldactivity['object_object_type'])) {
+			$fields['object-object-type'] = $ldactivity['object_object_type'];
 		}
+
+		if (!empty($http_signer)) {
+			$fields['signer'] = $http_signer;
+		}
+
+		DBA::insert('inbox-entry', $fields, Database::INSERT_IGNORE);
+
+		$queue = DBA::selectFirst('inbox-entry', ['id'], ['activity-id' => $ldactivity['id']]);
+		if (!empty($queue['id'])) {
+			$ldactivity['entry-id'] = $queue['id'];
+			DBA::insert('inbox-entry-receiver', ['queue-id' => $queue['id'], 'uid' => $uid], Database::INSERT_IGNORE);
+		}
+		return $ldactivity;
+	}
+
+	public static function removeFromQueue(array $activity = [])
+	{
+		if (empty($activity['entry-id'])) {
+			return;
+		}
+		DBA::delete('inbox-entry', ['id' => $activity['entry-id']]);
 	}
 
 	/**
@@ -517,7 +528,7 @@ class Receiver
 	 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
 	 * @throws \ImagickException
 	 */
-	public static function processActivity(FetchQueue $fetchQueue, array $activity, string $body = '', int $uid = null, bool $trust_source = false, bool $push = false, array $signer = [])
+	public static function processActivity(FetchQueue $fetchQueue, array $activity, string $body = '', int $uid = null, bool $trust_source = false, bool $push = false, array $signer = [], string $http_signer = '')
 	{
 		$type = JsonLD::fetchElement($activity, '@type');
 		if (!$type) {
@@ -591,6 +602,8 @@ class Receiver
 			$object_data['from-relay'] = $activity['from-relay'];
 		}
 
+		$object_data = self::enqueuePost($object_data, $type, $uid, $http_signer);
+
 		if (in_array('as:Question', [$object_data['object_type'] ?? '', $object_data['object_object_type'] ?? ''])) {
 			self::storeUnhandledActivity(false, $type, $object_data, $activity, $body, $uid, $trust_source, $push, $signer);
 		}
diff --git a/static/dbstructure.config.php b/static/dbstructure.config.php
index 1d8b21b02c..c1f1cfcbc1 100644
--- a/static/dbstructure.config.php
+++ b/static/dbstructure.config.php
@@ -784,30 +784,31 @@ return [
 			"hook_file_function" => ["UNIQUE", "hook", "file", "function"],
 		]
 	],
-	"inbox-queue" => [
+	"inbox-entry" => [
 		"comment" => "Incoming activity",
 		"fields" => [
 			"id" => ["type" => "int unsigned", "not null" => "1", "extra" => "auto_increment", "primary" => "1", "comment" => "sequential ID"],
-			"url" => ["type" => "varbinary(255)", "comment" => "id of the incoming activity"],
-			"in-reply-to-url" => ["type" => "varbinary(255)", "comment" => "related id of the incoming activity"],
-			"signer" => ["type" => "varbinary(255)", "comment" => "Signer of the incoming activity"],
+			"activity-id" => ["type" => "varbinary(255)", "comment" => "id of the incoming activity"],
+			"object-id" => ["type" => "varbinary(255)", "comment" => ""],
+			"type" => ["type" => "varchar(64)", "comment" => "Type of the activity"],
+			"object-type" => ["type" => "varchar(64)", "comment" => "Type of the object activity"],
+			"object-object-type" => ["type" => "varchar(64)", "comment" => "Type of the object's object activity"],			
+			"received" => ["type" => "datetime", "comment" => "Receiving date"],
 			"activity" => ["type" => "mediumtext", "comment" => "The JSON activity"],
-			"received" => ["type" => "datetime", "not null" => "1", "default" => DBA::NULL_DATETIME, "comment" => "Receiving date"],
-			"type" => ["type" => "varchar(64)", "not null" => "1", "default" => "", "comment" => "Type of the activity"],
-			"object-type" => ["type" => "varchar(64)", "not null" => "1", "default" => "", "comment" => "Type of the object activity"],
+			"signer" => ["type" => "varchar(255)", "comment" => ""],
 		],
 		"indexes" => [
 			"PRIMARY" => ["id"],
-			"url" => ["UNIQUE", "url"],
-			"in-reply-to-url" => ["in-reply-to-url"],
+			"activity-id" => ["UNIQUE", "activity-id"],
+			"object-id" => ["object-id"],
 			"received" => ["received"],
 		]
 	],
-	"inbox-queue-receiver" => [
+	"inbox-entry-receiver" => [
 		"comment" => "Receiver for the incoming activity",
 		"fields" => [
-			"queue-id" => ["type" => "int unsigned", "not null" => "1", "foreign" => ["inbox-queue" => "id"], "comment" => ""],
-			"uid" => ["type" => "mediumint unsigned", "not null" => "1", "default" => "0", "foreign" => ["user" => "uid"], "comment" => "User id"],
+			"queue-id" => ["type" => "int unsigned", "not null" => "1", "primary" => "1", "foreign" => ["inbox-entry" => "id"], "comment" => ""],
+			"uid" => ["type" => "mediumint unsigned", "not null" => "1", "primary" => "1", "foreign" => ["user" => "uid"], "comment" => "User id"],
 		],
 		"indexes" => [
 			"PRIMARY" => ["queue-id", "uid"],