有没有示例应用可以使用c#解析来自docusign接口的信封事件通知？

using System;
using System.IO;
using System.Net;
using System.Text;

class Program
{
    static void Main(string[] args)
    {
        // 监听来自DocuSign的HTTP POST请求
        HttpListener listener = new HttpListener();
        listener.Prefixes.Add("http://localhost:8080/"); // 设置监听的URL
        listener.Start();

        Console.WriteLine("Listening for incoming requests...");

        while (true)
        {
            // 接收到请求时处理
            HttpListenerContext context = listener.GetContext();
            HttpListenerRequest request = context.Request;

            // 读取请求内容
            using (StreamReader reader = new StreamReader(request.InputStream, request.ContentEncoding))
            {
                string requestBody = reader.ReadToEnd();
                Console.WriteLine("Received request body: " + requestBody);

                // 解析请求内容，处理信封事件通知
                // 在这里编写您的解析逻辑和业务处理代码
            }

            // 发送响应
            HttpListenerResponse response = context.Response;
            string responseString = "OK";
            byte[] buffer = Encoding.UTF8.GetBytes(responseString);
            response.ContentLength64 = buffer.Length;
            response.OutputStream.Write(buffer, 0, buffer.Length);
            response.OutputStream.Close();
        }
    }
}