{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xb89e7c35e2fc92b6897b9124411e7cbfff412a6a2bfe8165bc24248150ae0c4e",
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  }
}