[
  "r of set",
  {
    "required": 1,
    "set": [
      [
        "sig",
        {
          "pubkey": "A2PqxSH6C0/KAVmexQIcnacu+PE+BOWI5Up6QZJggzdK"
        }
      ],
      [
        "sig",
        {
          "pubkey": "A9qEsPVyoc8//1XE7XW8ONWgmWHhwUmrsZgVp5YhsROW"
        }
      ]
    ]
  }
]