{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x8db5b414df61ba62ecdcc86a6df5f6dc3328ce6c91f17f9b2f3095a8a81adf56",
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}