{
  "type": "join",
  "room": "pm:crypto:btc"
}

{
  "type": "leave",
  "room": "pm:crypto:btc"
}

{
  "type": "message",
  "room": "pm:crypto:btc",
  "data": {
    "type": "crypto_price",
    "channel": "prices",
    "exchange": "polymarket",
    "marketId": "btc/usd",
    "category": "crypto",
    "sourceId": "chainlink:btc/usd:1782753357213",
    "timestamp": 1782753357213,
    "symbol": "BTC",
    "pair": "btc/usd",
    "asset": "btc",
    "value": 64822.23,
    "source": "chainlink"
  }
}