[
  "r of set",
  {
    "required": 1,
    "set": [
      [
        "sig",
        {
          "pubkey": "A2BQBjhWutwx184V/CI0fJI8BL2cCanoZkwbU4MQ1sOk"
        }
      ],
      [
        "sig",
        {
          "pubkey": "A+8O6naShhyCWt1Vbt7Xh543FjqdZo4LkfffMDHZCQxl"
        }
      ]
    ]
  }
]