create.gm

{
  "name": "authority",
  "base": "",
  "fields": [
    {
      "name": "threshold",
      "type": "uint32"
    },
    {
      "name": "keys",
      "type": "key_weight[]"
    },
    {
      "name": "accounts",
      "type": "permission_level_weight[]"
    },
    {
      "name": "waits",
      "type": "wait_weight[]"
    }
  ]
}