public function run(Request $request)
 {
     $queueRepository = \Contao\Doctrine\ORM\EntityHelper::getRepository('Avisota\\Contao:Queue');
     $queueId = $request->get('id');
     $queue = $queueRepository->find($queueId);
     /** @var \Avisota\Contao\Entity\Queue $queue */
     if (!$queue) {
         header("HTTP/1.0 404 Not Found");
         echo '<h1>404 Not Found</h1>';
         exit;
     }
     $user = \BackendUser::getInstance();
     $user->authenticate();
     try {
         return $this->execute($request, $queue, $user);
     } catch (\Exception $exception) {
         $response = new JsonResponse(array('error' => sprintf('%s in %s:%d', $exception->getMessage(), $exception->getFile(), $exception->getLine())), 500);
         $response->prepare($request);
         return $response;
     }
 }