UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'e55+uDjFGHOfhYb1G5d26zi66W43sgnJGP3eRbyGF78=' 
WHERE 
  key_id = '21ba66cce76e89baa1394c6e457c4632886518d8904fd5de53843464d1317647' 
  AND (
    token = 'e55+uDjFGHOfhYb1G5d26zi66W43sgnJGP3eRbyGF78=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )