UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'tKEkTcTTD5nS/mWSIk7MqXd6q9g3U9XxemY9CkbrncI=' 
WHERE 
  key_id = '6c451fb95aea094d85de74121d686c579d20d5685937423e5e8ee88802d51d05' 
  AND (
    token = 'tKEkTcTTD5nS/mWSIk7MqXd6q9g3U9XxemY9CkbrncI=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )