请求参数:

{"sp_appid":"wxbb0cebed38f257c1","sp_mchid":"1285393401","sub_appid":"wxf15c5869fe635889","sub_mchid":"1445283602","description":"微信小程序","out_trade_no":"8391214840794378240","notify_url":"https://moran.ngrok.mgcloud.vip/open/notify","amount":{"total":100,"currency":"CNY"},"payer":{"sub_openid":"ovAOE6xgnzgcUmUhywjRY8nSyePA"},"scene_info":{"payer_client_ip":"127.0.0.1"}}