UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'kpVaUsdBpf5RcyP7QQp9CtQ4GKNw28Xn6Z8BAlE2DvY=' 
WHERE 
  key_id = '9244c4d13cea85909b5fb9fad5063b8c916d2bf5e039cf6b6831b7e0e5fb460d' 
  AND (
    token = 'kpVaUsdBpf5RcyP7QQp9CtQ4GKNw28Xn6Z8BAlE2DvY=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )