[
  "r of set",
  {
    "required": 1,
    "set": [
      [
        "sig",
        {
          "pubkey": "AmXio4jVhI9qG9oRpPAWYOAKD3EdgpvBnaja47vnAdPk"
        }
      ],
      [
        "sig",
        {
          "pubkey": "Aqe9lH6QHvV3uLmEnFcv2H9I9YoiQMzF4aLl1pE6REhr"
        }
      ]
    ]
  }
]