How do i connect to websocket URL from website?

i'm trying to get the update values from website, i manage to connect but i cant get the values, i dont know if i'm doing anything wrong.

this is what i'm trying to do, maybe this url is not complete, but i dont know how to get the full URL. when i try to conect i dont recieve anything, i read the coments i will try to send something to this websocket

webSocket webSocket messages

EDIT: this is the website: https://cachedownload.europacasino.com/live/desktop/bundles/22.4.1.4/?launch_alias=wwtbamrol_millrol&cat=Roulette%20&gameType=lobby&redirect_time=1651884988615&backUrl=https%3A%2F%2Fcachedownload.europacasino.com%2Flive%2Fdesktop%2F%3Flaunch_alias%3Dwwtbamrol_millrol%26cat%3DRoulette%2520#/

you need click in this button to show the entry hall

const WebSocket = require('ws')

const ws = new WebSocket('wss://eurolive-frontend.playtechgaming.com/ws')
ws.onmessage = (event) =>{
  
  console.log(event.data)
}
ws.onerror = (erro)=>{
  console.log(erro)
}```

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