{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xeb97bc9f7595b59f7f3ace2cee67aa587081111184f2e84efbf371c24d6895ad",
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    "signer": "0x2EA5a1c8D7557f2181EbfCaA54B20D10133AC97E",
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  }
}