diff --git a/boot.php b/boot.php
index 6816915417..27d8448531 100644
--- a/boot.php
+++ b/boot.php
@@ -39,7 +39,7 @@ define('FRIENDICA_PLATFORM',     'Friendica');
 define('FRIENDICA_CODENAME',     'Asparagus');
 define('FRIENDICA_VERSION',      '3.6-dev');
 define('DFRN_PROTOCOL_VERSION',  '2.23');
-define('DB_UPDATE_VERSION',      1252);
+define('DB_UPDATE_VERSION',      1253);
 define('NEW_UPDATE_ROUTINE_VERSION', 1170);
 
 /**
diff --git a/database.sql b/database.sql
index 3dadc23961..3f568a1dcf 100644
--- a/database.sql
+++ b/database.sql
@@ -1,6 +1,6 @@
 -- ------------------------------------------
 -- Friendica 3.6-dev (Asparagus)
--- DB_UPDATE_VERSION 1250
+-- DB_UPDATE_VERSION 1253
 -- ------------------------------------------
 
 
@@ -1003,6 +1003,7 @@ CREATE TABLE IF NOT EXISTS `tokens` (
 --
 CREATE TABLE IF NOT EXISTS `user` (
 	`uid` mediumint NOT NULL auto_increment COMMENT '',
+	`parent-uid` mediumint NOT NULL DEFAULT 0 COMMENT 'The parent user that has full control about this user',
 	`guid` varchar(64) NOT NULL DEFAULT '' COMMENT '',
 	`username` varchar(255) NOT NULL DEFAULT '' COMMENT '',
 	`password` varchar(255) NOT NULL DEFAULT '' COMMENT '',
@@ -1065,7 +1066,7 @@ CREATE TABLE IF NOT EXISTS `userd` (
 --
 CREATE TABLE IF NOT EXISTS `workerqueue` (
 	`id` int NOT NULL auto_increment COMMENT 'Auto incremented worker task id',
-	`parameter` mediumtext COMMENT 'Task command',
+	`parameter` mediumblob COMMENT 'Task command',
 	`priority` tinyint NOT NULL DEFAULT 0 COMMENT 'Task priority',
 	`created` datetime NOT NULL DEFAULT '0001-01-01 00:00:00' COMMENT 'Creation date',
 	`pid` int NOT NULL DEFAULT 0 COMMENT 'Process id of the worker',
diff --git a/src/Core/Addon.php b/src/Core/Addon.php
index 5a1392c093..a3bfeec32b 100644
--- a/src/Core/Addon.php
+++ b/src/Core/Addon.php
@@ -200,7 +200,7 @@ class Addon
 
 		if (is_array($a->hooks) && array_key_exists($name, $a->hooks)) {
 			foreach ($a->hooks[$name] as $hook) {
-				Worker::add($priority, 'ForkHook', $name, json_encode($hook), json_encode($data));
+				Worker::add($priority, 'ForkHook', $name, $hook, $data);
 			}
 		}
 	}
diff --git a/src/Core/Worker.php b/src/Core/Worker.php
index 57d2fa9711..e8a1f2e9f6 100644
--- a/src/Core/Worker.php
+++ b/src/Core/Worker.php
@@ -218,7 +218,7 @@ class Worker
 			return false;
 		}
 
-		$argv = json_decode($queue["parameter"]);
+		$argv = json_decode($queue["parameter"], true);
 
 		// Check for existance and validity of the include file
 		$include = $argv[0];
@@ -552,7 +552,7 @@ class Worker
 				$max_duration_defaults = [PRIORITY_CRITICAL => 720, PRIORITY_HIGH => 10, PRIORITY_MEDIUM => 60, PRIORITY_LOW => 180, PRIORITY_NEGLIGIBLE => 720];
 				$max_duration = $max_duration_defaults[$entry["priority"]];
 
-				$argv = json_decode($entry["parameter"]);
+				$argv = json_decode($entry["parameter"], true);
 				$argv[0] = basename($argv[0]);
 
 				// How long is the process already running?
@@ -1001,32 +1001,12 @@ class Worker
 	 */
 	public static function add($cmd)
 	{
-		$proc_args = func_get_args();
+		$args = func_get_args();
 
-		$args = [];
-		if (!count($proc_args)) {
+		if (!count($args)) {
 			return false;
 		}
 
-		// Preserve the first parameter
-		// It could contain a command, the priority or an parameter array
-		// If we use the parameter array we have to protect it from the following function
-		$run_parameter = array_shift($proc_args);
-
-		// expand any arrays
-		foreach ($proc_args as $arg) {
-			if (is_array($arg)) {
-				foreach ($arg as $n) {
-					$args[] = $n;
-				}
-			} else {
-				$args[] = $arg;
-			}
-		}
-
-		// Now we add the run parameters back to the array
-		array_unshift($args, $run_parameter);
-
 		$arr = ['args' => $args, 'run_cmd' => true];
 
 		Addon::callHooks("proc_run", $arr);
@@ -1052,10 +1032,9 @@ class Worker
 			}
 		}
 
-		$argv = $args;
-		array_shift($argv);
+		array_shift($args);
 
-		$parameters = json_encode($argv);
+		$parameters = json_encode($args);
 		$found = dba::exists('workerqueue', ['parameter' => $parameters, 'done' => false]);
 
 		// Quit if there was a database error - a precaution for the update process to 3.5.3
diff --git a/src/Database/DBStructure.php b/src/Database/DBStructure.php
index 9c3c0d82a3..9a1c8a2d52 100644
--- a/src/Database/DBStructure.php
+++ b/src/Database/DBStructure.php
@@ -1772,7 +1772,7 @@ class DBStructure
 				"comment" => "Background tasks queue entries",
 				"fields" => [
 						"id" => ["type" => "int", "not null" => "1", "extra" => "auto_increment", "primary" => "1", "comment" => "Auto incremented worker task id"],
-						"parameter" => ["type" => "mediumtext", "comment" => "Task command"],
+						"parameter" => ["type" => "mediumblob", "comment" => "Task command"],
 						"priority" => ["type" => "tinyint", "not null" => "1", "default" => "0", "comment" => "Task priority"],
 						"created" => ["type" => "datetime", "not null" => "1", "default" => NULL_DATE, "comment" => "Creation date"],
 						"pid" => ["type" => "int", "not null" => "1", "default" => "0", "comment" => "Process id of the worker"],
diff --git a/src/Worker/ForkHook.php b/src/Worker/ForkHook.php
index 1cd83bb3b3..6c138bace4 100644
--- a/src/Worker/ForkHook.php
+++ b/src/Worker/ForkHook.php
@@ -8,12 +8,9 @@ namespace Friendica\Worker;
 use Friendica\Core\Addon;
 
 Class ForkHook {
-	public static function execute($name, $hook_json, $data_json) {
+	public static function execute($name, $hook, $data) {
 		global $a;
 
-		$hook = json_decode($hook_json, true);
-		$data = json_decode($data_json, true);
-
 		Addon::callSingleHook($a, $name, $hook, $data);
 	}
 }