curl --request GET \
  --url https://api.bron.org/workspaces/{workspaceId}/balances/{balanceId}

{
  "accountId": "<string>",
  "accountType": "vault",
  "assetId": "<string>",
  "balanceId": "<string>",
  "workspaceId": "<string>",
  "createdAt": "<string>",
  "networkId": "<string>",
  "symbol": "<string>",
  "totalBalance": "<string>",
  "updatedAt": "<string>",
  "withdrawableBalance": "<string>"
}