[
  "r of set",
  {
    "required": 1,
    "set": [
      [
        "sig",
        {
          "pubkey": "A2tUr0V2cujTbpXZ92yoRBo8wKgZ/gCmip/MnG/Icgvw"
        }
      ],
      [
        "sig",
        {
          "pubkey": "At1fLOGvknX9J7EL6t+DsXcGzsynijg/CtEeYBjLAZsL"
        }
      ]
    ]
  }
]