{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xa303c39dd2ed78bb1c37709ba870e76aa2db25aa8e05e22a9026ebfd9d68a696",
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}