mindswapswap

{
  "name": "exchange",
  "base": "",
  "fields": [
    {
      "name": "user",
      "type": "name"
    },
    {
      "name": "pair_token",
      "type": "symbol_code"
    },
    {
      "name": "ext_asset_in",
      "type": "extended_asset"
    },
    {
      "name": "min_expected",
      "type": "asset"
    }
  ]
}