{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x1c60927966b9bac706eea2b86763c4b6ec5cb50a71d2327b36c9dda8df3f9c75",
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}