{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x580bd653f330fb757c97ab126126493c2c4c7456e956eb483a573b4e565cd421",
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    "userId": "907828722"
  }
}