[
  "r of set",
  {
    "required": 1,
    "set": [
      [
        "sig",
        {
          "pubkey": "AntuhCSnw4nQHXC/oJXUYLQK172pR+U6SxQwVxtYiuRw"
        }
      ],
      [
        "sig",
        {
          "pubkey": "ArzHsk3PtoJ3TiYZNq4SEeHvpGk865tGW4T/UCxbrAo4"
        }
      ]
    ]
  }
]