{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x9d2ee91ef7b3fbfefa7f66b7b5c1e3215ec782eb383c77a8d2d21f210a7b1563",
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    "signer": "0x2E841a9E2372464aE0aF894b022ca5FC1EdD2691",
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  }
}