从C#服务器向android发送FCM数据负载通知？

using FirebaseAdmin;
using Google.Apis.Auth.OAuth2;

// 初始化FirebaseApp
FirebaseApp.Create(new AppOptions()
{
    Credential = GoogleCredential.FromFile("path/to/serviceAccountKey.json")
});

using FirebaseAdmin.Messaging;

// 构建FCM通知
var message = new Message()
{
    Notification = new Notification()
    {
        Title = "通知标题",
        Body = "通知内容"
    },
    Token = "设备标识符"
};

// 发送FCM通知
var response = await FirebaseMessaging.DefaultInstance.SendAsync(message);

import com.google.firebase.iid.FirebaseInstanceId;

// 获取设备的FCM注册令牌
String token = FirebaseInstanceId.getInstance().getToken();

import com.google.firebase.messaging.FirebaseMessagingService;
import com.google.firebase.messaging.RemoteMessage;

public class MyFirebaseMessagingService extends FirebaseMessagingService {
    @Override
    public void onMessageReceived(RemoteMessage remoteMessage) {
        // 处理FCM通知的数据负载
        String title = remoteMessage.getNotification().getTitle();
        String body = remoteMessage.getNotification().getBody();
        
        // 在通知栏显示通知
        // ...
    }
}