eosnftmining

{
  "name": "Slot",
  "base": "",
  "fields": [
    {
      "name": "user",
      "type": "name"
    },
    {
      "name": "capacity",
      "type": "uint32"
    },
    {
      "name": "used",
      "type": "uint32"
    }
  ]
}