{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x3e5cbf2a7a43616085ac287043b33ac191052eb30b39f2ec17d8f5b705e1a95e",
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  }
}