{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x40a9cfd13723f64bf01f467c910c0042b897006663161c1862c6563268d3273c",
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  }
}