[
    "r of set",
    {
        "required": 2,
        "set": [
            [
                "sig",
                {
                    "pubkey": "Ar3cmbMXm2i1162ZU+aZbIDaXoO+5LHk41kkgJD2EA7a"
                }
            ],
            [
                "sig",
                {
                    "pubkey": "AwL4Zui0pcwVYdvqkoKYiyAFnlhK6rxoqB26IffSGtLF"
                }
            ],
            [
                "sig",
                {
                    "pubkey": "A8QK1QNsUosnBgFLfTSAER/WDc9zYcGMh0Qw9rbNYwji"
                }
            ]
        ]
    }
]