[
  "r of set",
  {
    "required": 1,
    "set": [
      [
        "sig",
        {
          "pubkey": "Ax3npdLkK0oEO07hTqVxL+B2rcMVN9NwxZDYY567+Y26"
        }
      ],
      [
        "sig",
        {
          "pubkey": "A/f+zHrcCqs/tRxhnW6NDY/EeF1pZHE0Vj7v6XOiPRqz"
        }
      ]
    ]
  }
]