curl --request GET \
  --url https://api.sumvin.com/v0/wallets/{wallet_id}/assets

{
  "_links": {},
  "wallet_address": "<string>",
  "wallet_chain_id": 123,
  "assets": [
    {
      "symbol": "<string>",
      "name": "<string>",
      "chain_id": 123,
      "balance": "<string>",
      "balance_updated_at": 123,
      "balance_usd": "<string>",
      "transactions_href": "<string>",
      "_links": {}
    }
  ],
  "total_assets": 123
}