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{
  "name": "addhero",
  "base": "",
  "fields": [
    {
      "name": "authorized_account",
      "type": "name"
    },
    {
      "name": "payload",
      "type": "string"
    },
    {
      "name": "start_time",
      "type": "uint32"
    },
    {
      "name": "end_time",
      "type": "uint32"
    }
  ]
}