UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'Kxz6gvrcBz5KkWd2MxLFehrf7jgVij2/HRE+V6wVctk=' 
WHERE 
  key_id = '38c3fe9a8d96d061971ec04e6aefad3a7451c3ca16663814c65bcd6efb788b53' 
  AND (
    token = 'Kxz6gvrcBz5KkWd2MxLFehrf7jgVij2/HRE+V6wVctk=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )