code: function findByID($id, $queue = null)
      {
          $queue = $this->_normalizeQueueName($queue);
  
          try {
              $sql = "SELECT * FROM `{$this->table}` WHERE `queue_name` = '$queue' and `task_id` = '$id';";
  
              $stm = $this->conn->prepare($sql);
              $stm->execute();
              $stm->setFetchMode(\PDO::FETCH_ASSOC);
  
              if (! $queued = $stm->fetch() )
                  return null;
  
          } catch (\Exception $e) {
              throw new exReadError('Error While Read From MySql Client.', $e->getCode(), $e);
          }
  
  
          $payload = unserialize($queued['payload']);
          return $payload;
      }
docs: Find Queued Payload By Given ID
  
  @param string $id
  @param string $queue
  
  @return iPayloadQueued|null
  @throws exIOError