{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x02a705051049c3da97877d6df896556315eebfa7994d5ac80afcf64e4d753166",
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  }
}