{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xf07655c3bd1e48112d2caff4241bd750b68e963dd52d41adb58bb6d77f120df9",
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    "signer": "0xF1fC1d1C5e0Fa2C37eb724f58476fFAff5ADbDdb",
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  }
}