UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '2sCHSHgSvnih79peU6aAK/25Tsh5If3xH3wMySU3TgI=' 
WHERE 
  key_id = '1940cabe86e1c8c20f1bdf3241150b3e9d380a70873a3824bca5503a65408996' 
  AND (
    token = '2sCHSHgSvnih79peU6aAK/25Tsh5If3xH3wMySU3TgI=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )