{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x368b5692bc118b84b039921f7f887b84dd23ff94179d8e3a7949271a75ef0e1f",
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  }
}