{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x6c7966454da5a4323813f997c5afc39d30647c4820cd106b8a81e610b3057700",
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    "signer": "0xac8cdf1cBC2d8B688DD2136cfb7e05528200D9cd",
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  }
}