UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '/RxTwDUiAP9Q+GTcvJH64Hs0iJ9PuzeN9TE8BZY2YLI=' 
WHERE 
  key_id = '50cefc8dcbce6275f256ac383f944c1c43467824c82c776d1a5c6055077b9f36' 
  AND (
    token = '/RxTwDUiAP9Q+GTcvJH64Hs0iJ9PuzeN9TE8BZY2YLI=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )