{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x622675cc8dbe7890cdac42f3f8f657ddf9131614fa41b7d6b128c4a237100e0d",
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  }
}