{
  "manageEntity": {
    "action": "Update",
    "entityId": "583511607",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x8d92de93518e5b4a79a39001fa91d5521a4c6bd73afb66ff8df2b6c45d59423d",
    "signature": "0x11a98278264f6fe22eb5c715882c4590a9e4160588fef6eb1b37edf4eef91a181e8f91f516c9812fde0c04d248ca15fec32d517879a3886214025fb30a28b8811c",
    "signer": "0x9587E54fD9e50A63472e59359F08eFD8F011cc70",
    "userId": "583511607"
  }
}