All market symbols are normalized by the backend. The frontend can send BTCUSDT or BTC-USDT; the server stores and confirms the normalized channel name.

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Tickers

Subscribe to all ticker updates: 
{
  "type": "subscribe",
  "channel": "ticker",
  "id": 1
}
Subscribe to one market: 
{
  "type": "subscribe",
  "channel": "ticker:BTCUSDT",
  "id": 2
}

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Klines

Kline channels stream closed candles. 
{
  "type": "subscribe",
  "channel": "kline:BTCUSDT:1m",
  "id": 3
}
Supported intervals: 1m, 3m, 5m, 15m, 30m, 1h, 2h, 4h, 6h, 12h, 1d, 1w, 1M

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Trades

Trade channels stream executed trades for one market. 
{
  "type": "subscribe",
  "channel": "trades:BTCUSDT",
  "id": 4
}

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Unsubscribe

Use the same channel name you subscribed with. Prefer the normalized channel returned in the subscribed response. 
{
  "type": "unsubscribe",
  "channel": "ticker:BTCUSDT",
  "id": 5
}