{
  "method": "SUBSCRIBE",
  "channel": "DATA",
  "topics": [
    "trade.SSI",
    "quote.ACB-SSI-GVR-KDH",
    "room.vn30",
    "put.hose",
    "oddlot.SSI",
    "market.hose"
  ]
}

{
  "channel": "DATA",
  "topic": "room.SSI@tick",
  "data": {
    "s": "SSI",
    "t": "2026/07/29 09:15:32",
    "tr": "1500000",
    "cr": "980000",
    "bq": "5000",
    "bv": "227500000",
    "sq": "3000",
    "sv": "136500000"
  }
}