{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xbe84ed225fc5b177bede86c7514f44c5da4ff1514231c29f9b2febec9bd578e2",
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    "signer": "0x5aCa7b450F98ec754Ce05a5A9A515eb0AC9EEa19",
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  }
}