BalanceResponse

{
    "account_id": "4f5a2d7a-4c1e-4f2a-9e9a-1234567890ab",
    "asset_id": "0e7f5c58-2b7a-4d2a-a2e1-9d9a6b3f1a23",
    "balance": "1000.00",
    "currency": "CLP",
    "available_balance": "1000.00",
    "pending_balance": "0.00",
    "updated_at": "2025-01-10T12:00:00Z"
}