{
  "op": "subscribe",
  "symbols": [
    "600000.SH",
    "000001.SZ"
  ]
}

{
  "op": "unsubscribe",
  "symbols": [
    "600000.SH"
  ]
}

{
  "op": "subscribed",
  "symbols": [
    "600000.SH",
    "000001.SZ"
  ],
  "total": 2
}

No examples found

{
  "op": "<string>",
  "message": "<string>"
}