curl --request GET \
  --url https://api.enterprise.sandbox.uphold.com/core/accounts/{accountId} \
  --header 'Authorization: Bearer <token>'

{
  "account": {
    "id": "555a99a1-620d-4431-a0ac-b43e1aad2bdc",
    "ownerId": "1e32fca3-23f7-40ed-bc1b-de10c790182d",
    "label": "My BTC account",
    "asset": "BTC",
    "balance": {
      "total": "0.0015",
      "available": "0.0015"
    },
    "createdAt": "2024-06-01T00:00:00.000Z",
    "updatedAt": "2024-07-15T00:00:00.000Z"
  }
}