simplemarket

{
  "name": "addfee",
  "base": "",
  "fields": [
    {
      "name": "author",
      "type": "name"
    },
    {
      "name": "account",
      "type": "name"
    },
    {
      "name": "fee",
      "type": "uint16"
    }
  ]
}