{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xa6ac3b97475d3d456ec7c57e9c291d31e8413b61539c40a1d6856d9a3a6fc8e0",
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    "userId": "708826400"
  }
}