stake.start

{
  "name": "updatetier",
  "base": "",
  "fields": [
    {
      "name": "id",
      "type": "uint64"
    },
    {
      "name": "threshold",
      "type": "asset"
    },
    {
      "name": "weight",
      "type": "int16"
    },
    {
      "name": "discount",
      "type": "int16"
    }
  ]
}