curl --request POST \
  --url https://api.fairground.fi/orderbook_service.v1.OrderBookService/GetOrderBook \
  --header 'Authorization: Bearer <token>' \
  --header 'Connect-Protocol-Version: <connect-protocol-version>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "market": {
    "marketId": 123
  },
  "tickSize": 123,
  "usdPrice": true
}
'

{
  "orderBook": {
    "marketId": 123,
    "timestamp": "2023-11-07T05:31:56Z",
    "longs": [
      {
        "price": 123,
        "size": 123,
        "total": 123,
        "currency": "<string>"
      }
    ],
    "shorts": [
      {
        "price": 123,
        "size": 123,
        "total": 123,
        "currency": "<string>"
      }
    ]
  }
}