public TokenValidatorService(IUserStore <User> usersStoreService, ITokenStoreService tokenStoreService, ILastLoggedIn lastLoggedIn) { _usersStoreService = usersStoreService; _usersStoreService.CheckArgumentIsNull(nameof(usersStoreService)); _tokenStoreService = tokenStoreService; _lastLoggedIn = lastLoggedIn; _tokenStoreService.CheckArgumentIsNull(nameof(_tokenStoreService)); }