public IEnumerable <TokenViewModel> GetUserTokens(IEnumerable <string> userIds, bool hashedUserIds = false)
        {
            var tokens      = TableStorageService.GetItems(userIds, null, null, hashedUserIds);
            var tokenModels = new List <TokenViewModel>();

            // Save the files from Blob storage if they don't already exist to a temp location
            foreach (FileItem token in tokens)
            {
                SaveTokenToTemp(token);

                tokenModels.Add(new TokenViewModel
                {
                    Id       = token.FileGuid.ToString(),
                    Name     = token.Name,
                    Type     = token.Type,
                    ImageUri = "/Temp/" + token.FileGuid + ".jpg"
                });
            }

            return(tokenModels);
        }