{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x2f1c52dd14139c1fbb1041650ef62474009ec6cee4d6b725d782e288938c928f",
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    "signer": "0xDeF7b7Dcc18B5220d812AabBC02a919ac473db7E",
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  }
}