{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x29023dc1c59fd121d8ef30980b38081cc4bee1b87a24f7ceeb49a4a68fc3c489",
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    "signer": "0x8fcC513d42A092067e33501CAC6C1d8D6aDE3B17",
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  }
}