{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xc1a7b8acf9b6892fd83f78614f8a91dce53e7a6f0772eb0d1bed828eccf3141b",
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  }
}