IWXAPI wxApi = WXAPIFactory.createWXAPI(context, Constants.WX_API_ID, true);
wxApi.registerApp(Constants.WX_API_ID);
SubscribeMessage.Req req = new SubscribeMessage.Req();
req.scene = 0;
req.templateID = Constants.WEBCHAT_TEMPLATE_ID;
req.reserved = "test";
wxApi.sendReq