margin.wal

{
  "name": "user_asset",
  "base": "",
  "fields": [
    {
      "name": "exchange_ref_id",
      "type": "uint32"
    },
    {
      "name": "ext_symbol_ref_id",
      "type": "uint32"
    },
    {
      "name": "amount",
      "type": "int64"
    }
  ]
}