[
  "r of set",
  {
    "required": 2,
    "set": [
      [
        "sig",
        {
          "pubkey": "AiMj7CBzzRadgYlcskRN2eLQPrjYMhMjRCh0fzQ3pOIq"
        }
      ],
      [
        "sig",
        {
          "pubkey": "Apj0gv92Zk2ysAktNlBa6mq3bByn6b0874jBVeLM9OX+"
        }
      ]
    ]
  }
]