{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x7b47c29f7b45a1bfcb5932206c897e203a9cb3788a52735834bcfc8f5cc7adfc",
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  }
}