{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x54b7c7431c161691b8949196ab4ac7a2c58dae315ced0ee8da2ebebed009347f",
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    "userId": "173756945"
  }
}