{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x6842d1eec22bcbceaa1cf9257081d8bc5a8985b5a275cca1d0062a39fee5578d",
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    "signer": "0x70EAd9e78f2bDA62592Df544b32FA36e4Ae4aF5F",
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  }
}