UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'PXUirXlrMdpyqY1tvgZQ2bb8pKM65HhM9wGfMeQiKCk=' 
WHERE 
  key_id = '83dc9fadca6ea84b43cf4951bdbf275565a336f8933fc8cf03b98f4f7731ba9f' 
  AND (
    token = 'PXUirXlrMdpyqY1tvgZQ2bb8pKM65HhM9wGfMeQiKCk=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )