[
    [
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            "nonce": 17
        },
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            "from": "from",
            "amount": 100,
            "to_whom": "to_whom"
        },
        {
            "preview_hash": "0c5955b05fb75c1708d05dd4e2e2300e6758ffcdf4fe0a25d7293c102daf9781"
        }
    ],
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]