Wherer i can find this param "subscription_id" ?

[katfionn]

❓ Question
where i can find subscription_id?

Detail

I note that sw.js in official demo got this:

const handlePushMessage = async (data) => {
  const { subscription_id: subscriptionId, message } = data;

  await self.registration.showNotification(message.topic, {
    body: message.body,
    icon: "/icon.png",
    badge: "/badge.png",
  });
};

But when i print the log in console after subscrib with websocket, here's the response i got. There's no such thing call subscription_id.

{
   "actions": [
      {
         "action": "view",
         "clear": true,
         "id": "Lmq5KevWsu",
         "label": "查看文章",
         "url": "https://71.gold/?post=69665"
      },
      {
         "action": "view",
         "clear": true,
         "id": "xn4Ur47Dkt",
         "label": "访问首页",
         "url": "https://71.gold/"
      }
   ],
   "attachment": {
      "name": "阿里云盘4K影视.webp",
      "url": "https://source.71.gold/img/阿里云盘4K影视.webp"
   },
   "content_type": "text/markdown",
   "event": "message",
   "expires": 1733920817,
   "id": "lVf6uucYIFi7",
   "message": "1、[🖼 名称：自由职业者 (2023) 4K 中英外挂字幕 描述：一名前特种部队特工在记者采访独裁者时接受了一份为她提供安全保障的工作，但当采访过程中爆发军事政变时...](https://t.me/Aliyun_4K_Movies/29392) —— 2024-12-11 08:31:02 \n\n![](https://cdn1.cdn-telegram.org/file/HebvhIlRXJxf9N2QKNLe1x9U0pUXkKuKvCoR8Ut_0jewJnP81WYj78zvtmGljiAk1FHGuw1OKdeuDvzpnp0Kzz6t4TpQUZrwiZ3KNhCtNaMSJ5iBeruPVk4kZspsp59TTuXfxpXPw_q3xnf8z3OMltckmWSH4UoIkyE6a5p4RKm9CMWZ9wlXSiUBqiXr5VAYEIDUI6wuFBhhXmNZbb1QKSJ2knQkx17jvQtL332zA2pK4uvwqul81SPYz-B8_ZRyX6-48vnQyy-GOBmzjOQ2TJXIcEAa9vMMCLuiVbyEf72GnJnTH1h2idk-4JWdC5RGbN-p22BhA-IL5SQ3HsTP0g.jpg)",
   "priority": 3,
   "time": 1733877617,
   "title": "🎞影音大全有新资讯了",
   "topic": "YJr3F1HNZXDs1fzCAltAdVQIz-HC-xVvnYQYnLul_oI"
}

I don't have any experience or bacsic knowledge about Javascript, All my code are relied on AI, so any help or instructions will be greatful.