{
  "req": "sub",
  "chs": [
    "trades::1"
  ]
}

{
  "req": "unsub",
  "chs": [
    "trades::1"
  ]
}

{
  "data": []
}

{
  "data": []
}

{
  "ch": "trades::1",
  "ts": 1767225600000,
  "sq": 1234567890,
  "data": [
    {
      "tid": 1,
      "iid": 1,
      "side": "long",
      "p": "100.00",
      "qty": "10.00",
      "ts": 1767225600000,
      "hash": "0x1234567890abcdef1234567890abcdef1234567890abcdef1234567890abcdef"
    }
  ]
}