eosdotatest1

{
  "name": "upgradehero",
  "base": "",
  "fields": [
    {
      "name": "account",
      "type": "name"
    },
    {
      "name": "hero_id",
      "type": "uint8"
    },
    {
      "name": "grade",
      "type": "uint8"
    },
    {
      "name": "client_random_hash",
      "type": "checksum256"
    },
    {
      "name": "client_randomnumber",
      "type": "checksum256"
    },
    {
      "name": "server_randomnumber",
      "type": "checksum256"
    }
  ]
}