[
  "r of set",
  {
    "required": 1,
    "set": [
      [
        "sig",
        {
          "pubkey": "A90JKwEfVDyMEdIJV/y9C6Ufki0PyXSJ5NNDdq6POzJY"
        }
      ],
      [
        "sig",
        {
          "pubkey": "A3dsaaSMd4UADjrDjI2UC6aC1kA1wDz7WmlPHjWlAMRS"
        }
      ]
    ]
  }
]