{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x608f7cdb89dd66576158e779b41485158dd2b6c588cb8747d202d82f6ccdacf0",
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    "userId": "466712647"
  }
}