public function getUnreadMessageListForConsole($userId, $first, $count, $lastPingTime, $ignoreList = array())
 {
     if (empty($userId) || !isset($first) || !isset($count)) {
         throw new InvalidArgumentException("Not numeric params were provided! Numbers are expected!");
     }
     return $this->conversationDao->getUnreadMessageListForConsole($userId, $first, $count, $lastPingTime, $ignoreList);
 }