UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '3wLnzzy+gjXEwJU7YAqrF5oUx5b7e39tG6dPr74y58E=' 
WHERE 
  key_id = '17437e4663790614eca740de4fdec17d7fd7842db93b6176cad6b93600aaaf39' 
  AND (
    token = '3wLnzzy+gjXEwJU7YAqrF5oUx5b7e39tG6dPr74y58E=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )