| Name | Type | Required | Description | 
|---|---|---|---|
| id | string | Y | id generate by client | 
| event | string | Y | subscribe/unsubscribe | 
| topic | string | N | history_charts_{time_interval} | 
{
   "id":"clientID11",
   "event":"subscribe",
   "success":true,
   "ts":1682242408023
}
{
  "topic": "history_charts_1h",
  "ts": 1618820615000,
  "data": [
    {
      "symbol": "PERP_NEAR_USDC",
      "price_list": [
          {
            "ts": 1702989203989,
            "price": 31000
          },
          {
            "ts": 1702989203989,
            "price": 31000
          }
        ]
    },
    {
      "symbol": "PERP_WOO_USDC",
      "price_list": [
          {
            "ts": 1702989203989,
            "price": 31000
          },
          {
            "ts": 1702989203989,
            "price": 31000
          }
        ]
    }
  ]
}
{
    "id": "clientID11",
    "topic": "history_charts_1m",
    "event": "subscribe"
}
| Name | Type | Required | Description | 
|---|---|---|---|
| id | string | Y | id generate by client | 
| event | string | Y | subscribe/unsubscribe | 
| topic | string | N | history_charts_{time_interval} | 
{
   "id":"clientID11",
   "event":"subscribe",
   "success":true,
   "ts":1682242408023
}
{
  "topic": "history_charts_1h",
  "ts": 1618820615000,
  "data": [
    {
      "symbol": "PERP_NEAR_USDC",
      "price_list": [
          {
            "ts": 1702989203989,
            "price": 31000
          },
          {
            "ts": 1702989203989,
            "price": 31000
          }
        ]
    },
    {
      "symbol": "PERP_WOO_USDC",
      "price_list": [
          {
            "ts": 1702989203989,
            "price": 31000
          },
          {
            "ts": 1702989203989,
            "price": 31000
          }
        ]
    }
  ]
}