{
  "id": 42,
  "jsonrpc": "2.0",
  "method": "public/subscribe",
  "params": {
    "channels": [
      "trades.BTC-PERPETUAL.100ms"
    ]
  }
}

{
  "data": [
    {
      "amount": 10,
      "direction": "sell",
      "index_price": 8955.88,
      "instrument_name": "BTC-PERPETUAL",
      "mark_price": 8948.9,
      "price": 8950,
      "tick_direction": 2,
      "timestamp": 1590484512188,
      "trade_id": "48079269",
      "trade_seq": 30289442
    }
  ]
}