public function delete(RESTRequest $request)
 {
     $identifiers = $request->getIdentifiers();
     if (!empty($identifiers[0]) && strlen($identifiers[0]) >= 12) {
         $users_ids = Stb::getUidByMacs($identifiers);
     } else {
         $users_ids = Stb::getUidByAccountNumber($identifiers);
     }
     if (count($identifiers) == 1 && count($users_ids) == 0) {
         throw new RESTCommandException('Account not found');
     }
     if (count($identifiers) > 1) {
         throw new RESTCommandException('Only one identifier allowed');
     }
     $result = true;
     foreach ($users_ids as $user_id) {
         $user = User::getInstance($user_id);
         $info = $user->getAccountInfo();
         $subscribe = $user->updateOptionalPackageSubscription(array('subscribe' => array(), 'unsubscribe' => $info['subscribed']));
         $result = $result && $subscribe;
         User::clear();
     }
     return $result;
 }
 protected function getUsersIdsFromIdentifiers($identifiers)
 {
     if (!empty($identifiers[0]) && strlen($identifiers[0]) >= 12 && strpos($identifiers[0], ":")) {
         return Stb::getUidByMacs($identifiers);
     } else {
         return Stb::getUidByAccountNumber($identifiers);
     }
 }