[
  "r of set",
  {
    "required": 2,
    "set": [
      [
        "sig",
        {
          "pubkey": "A1fUW+oRRPiUCfEwfjgdzy4bER9CCVtj59hQXHn24ccG"
        }
      ],
      [
        "sig",
        {
          "pubkey": "A6vFEOGmrvKtyY33U1byWxQbpK9RfgKt6OLjz9pT2Ilp"
        }
      ]
    ]
  }
]