群面员禁言、或全局禁言总是返回400

//访问地址 /{org_name}/{app_name}/chatgroups/{group_id}/mute
        String url = MessageFormat.format("{0}/chatgroups",
                HuanxinImSecurityConfig.getHuanxinUrl()
        );
        url = url + "/" + cmd.getTid() + "/mute";

        HuanxinAdminTokenInfo tokenInfo = HuanxinAdminTokenUtil.findHuanxinAdminToken();
        try {
            //Bearer
            String token = "Bearer " + tokenInfo.getAccess_token();

//            JSONArray body = new JSONArray();
            JSONObject jsonObject = new JSONObject();
            //要被添加禁言用户的 ID，"usernames":["user1"]
            jsonObject.put("usernames", cmd.getAccid());
            //禁言的时间，单位毫秒，如果是“-1”代表永久（实际的到期时间为固定时间戳4638873600000，即2117-01-01 00:00:00）
            jsonObject.put("mute_duration", 86400000);
//            body.add(jsonObject);

            HttpHeaders headers = new HttpHeaders();
            headers.add("Authorization", token);
            //headers.setContentType(MediaType.APPLICATION_JSON);
            //headers.setConnection();
            MediaType type = MediaType.parseMediaType("application/json; charset=UTF-8");
            // 请勿轻易改变此提交方式，大部分的情况下，提交方式都是表单提交
       headers.setContentType(type);
            HttpEntity httpEntity = new HttpEntity(jsonObject.toString(), headers);
            ResponseEntity responseEntity = restTemplate.postForEntity(url, httpEntity, null);
            return responseEntity.getStatusCodeValue() == HttpStatus.SC_OK;