{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x3dfc1c5503a74aee95d5fb99dc44ac72450d3bb11600134912d160b148eed935",
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    "signer": "0xEFAB3332CD5EA33e9817aa57B32CaCb8Acf973A4",
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  }
}