UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'g3h4bffs2GNM+A3qjT9CcHFf3yH/DtwE8MdXxUEAaZI=' 
WHERE 
  key_id = '51f6beec74221bc75aed24ac26d48eee30aa287856b711db239e2fff3673ec82' 
  AND (
    token = 'g3h4bffs2GNM+A3qjT9CcHFf3yH/DtwE8MdXxUEAaZI=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )