UltimateSaml Installation Procedure

In a C# application we installed the ComponentPro.Saml library, taking it directly from NuGet, without any key. After a few days we purchased the UltimateSaml product for .NET and received the UltimateSaml_Standard_7.2.234.189.exe file. On the website, on the account page, we find the confirmation of the purchase of UltimateSaml for .NET and next to it we find a license key. Our application is based on .NET Framework 4.8 and to develop it we use Visual Studio Community 2019. What are the actions we need to take now? how do we perform a full library installation? Thanks in advance