post数据到https://api.weixin.qq.com/wxa/commit?access_token=TOKEN

{

  "template_id": 1,

  "user_version": "1.2",

  "user_desc": "test",

  "ext_json": "{\"extEnable\":true,\"extAppid\":\"wx6cde1ccd28ea53dd\",\"ext\":{\"userAppId\":\"wx6cde1ccd28ea53dd\"}}"

}

返回的结果错误如下

{

    "errcode": 47001,

    "errmsg": "data format error hint: [8tLXoa08324530]"

}

请求协助明确问题,谢谢