UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'uVzYk2eiE2qJLPTfXVhcVyBEwtfYo1yXYx1ZBYtt+YM=' 
WHERE 
  key_id = '6a4e688232e2f25500946f45d55459c4d935ee75863fefed2df280cb263e0c47' 
  AND (
    token = 'uVzYk2eiE2qJLPTfXVhcVyBEwtfYo1yXYx1ZBYtt+YM=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )