1. Request
| param | type | description | 
|---|---|---|
| type | string | 'subscribe' | 'unsubscribe' | 
| channel | string | 'balance' | 
// request
{
  "type": "subscribe",
  "channel": 'balance',
}2. Responses
| param | type | description | 
|---|---|---|
| channel | string | 'balance' | 
| data | BALANCE | See below. | 
//Format
{
  [currency]: {
    available: string,
    total: string,
  }
}
//Example
{
  BTC: {
    available: "0.0",
    total: "0"
  },
  ETH: {
    available: "0.3",
    total: "1"
  }
}| currency | string | Currency ID | 
| available | string | Available amount of currency. | 
| total | string | Total amount of currency. | 
//response
{
  "channel": 'balance',
  "data": {
    [currency]: {
        available: string,
        total: string,
    }
  },
}