{
  "req": "sub",
  "chs": [
    "klines::1::1m"
  ]
}

{
  "req": "unsub",
  "chs": [
    "klines::1::1m"
  ]
}

{
  "data": []
}

{
  "data": []
}

{
  "ch": "klines::1::1m",
  "ts": 1767225600000,
  "sq": 1234567890,
  "data": [
    [
      1767225600000,
      "100.00",
      "105.00",
      "99.00",
      "102.00",
      "500.00",
      42
    ]
  ]
}