UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 300, 
  token = '6vm7Iu7J7xJxToO9Aic+YFDmE5rfnvLLTB0TlUkYO+A=' 
WHERE 
  key_id = '6e5bd4d954c37da32a14ff21d38e4a86061ac07004d69e32c75f3f2dc4794f53' 
  AND (
    token = '6vm7Iu7J7xJxToO9Aic+YFDmE5rfnvLLTB0TlUkYO+A=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )