UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'W30YNtjARDQoSdKzzmXpX9dvnHCc6+PVjOCH99vx0ck=' 
WHERE 
  key_id = 'a83f93baa8f4bd1592f393514bd96e84875dcde8c78fd42d076d598902320200' 
  AND (
    token = 'W30YNtjARDQoSdKzzmXpX9dvnHCc6+PVjOCH99vx0ck=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )