{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xcc7ac8379d9a2b9a3b16d7423b35531f110e115833538619e7c75eee67daf496",
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    "signer": "0xCF1beA3B84E045C90689398A753E87C706436710",
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  }
}