UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '4mef08DGa9KHJosoqKlCgZsyYd9QVMTqj64dPQcYCro=' 
WHERE 
  key_id = '79e4fbbe30ec2b8c3ee1c34c14784389c75a3cb456193c0c8b48edceee52427f' 
  AND (
    token = '4mef08DGa9KHJosoqKlCgZsyYd9QVMTqj64dPQcYCro=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )