/**
  * @param ExperienceManager $experienceManager
  * @return JsonResponse
  */
 public function updateWatching(ExperienceManager $experienceManager)
 {
     $validator = Validator::make(Request::all(), ['token' => 'required', 'streamer' => 'required']);
     if ($validator->fails()) {
         return new JsonResponse($validator->errors(), 422);
     }
     if ($this->streamingUser->has(Request::input('streamer'))) {
         $data = $experienceManager->processExpRequest(Request::all());
         switch ($data) {
             case ExperienceManager::NEED_RESYNC:
                 $status = 400;
                 break;
             default:
                 $status = 200;
                 break;
         }
         // TODO : check data returned to see if it's ok or need resync
     } else {
         // Error : no streaming in progress
         $status = 400;
     }
     return new JsonResponse($data, $status);
 }