{
  "req": "sub",
  "chs": [
    "builderFills"
  ]
}

{
  "req": "unsub",
  "chs": [
    "builderFills"
  ]
}

{
  "data": []
}

{
  "data": []
}

{
  "ch": "builderFills",
  "ts": 1767225600000,
  "ets": 1767225600000,
  "sq": 1234567890,
  "data": [
    {
      "earning_id": "1:1:0",
      "trade_id": 1,
      "order_id": 1234567890,
      "instrument_id": 1,
      "trader": "0x1234567890abcdef1234567890abcdef12345678",
      "buy": true,
      "price": "100.00",
      "quantity": "10.00",
      "client_order_id": "550e8400e29b41d4a716446655440000",
      "side": "maker",
      "sequence": 1234567890,
      "notional": "1000.00",
      "timestamp": 1767225600000,
      "fee_asset": "pUSD",
      "fee": "0.125",
      "builder_fee": "1.00",
      "total_fee": "1.125",
      "fee_rate": "0.001"
    }
  ]
}