UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'kkt1/1woTUkhQi5s1qGJfHcu8CUrRUvL//6nVJy1FTI=' 
WHERE 
  key_id = '6e671f869bb8700af9bdbaceafcf9c0311970047d9acc9a6a15e51af93a61f50' 
  AND (
    token = 'kkt1/1woTUkhQi5s1qGJfHcu8CUrRUvL//6nVJy1FTI=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )