{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xc9c80d071cefcc1147248c6b9b8f9d7fe044b7439e02e32cc05c794578e21b6b",
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  }
}