{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x3761deec8b085dca60a60f60b0d5fd72c872f685fc2f317c46f9c7331ba8b14e",
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  }
}