调用H5支付功能，跳转微信返回的链接，提示：商家参数格式有误，请联系商家解决。这种情况是什么问题导致，希望提供合理性意见，谢谢

参数如下：

{"mchid": "1643862950","out_trade_no": "H51217752501201407033233368011","appid": "wx46d999a46eedcf8c","description": "经开测试","notify_url": "http://oa.czjksk.com/","amount": {"total": 1,"currency": "CNY"},"scene_info": {"payer_client_ip": "oa.czjksk.com","h5_info": {"type": "Wap"}}}