UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'pSvl0hgqUn79sA8LIEfoawlRF6jCw90JcDiQMNPYQOg=' 
WHERE 
  key_id = '27c358f7a387899561cddfa2fcb473da93e22c5a41f545bfce9b84a736edd2ad' 
  AND (
    token = 'pSvl0hgqUn79sA8LIEfoawlRF6jCw90JcDiQMNPYQOg=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )