{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x03380507563e9776b95ea1761f688d989dda2f1ca58f4f7d8b0a68eb52e58216",
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  }
}