public async Task <List <DatabaseResultModel> > ExecuteCustomOperation(string operation)
        {
            logService.Log($"Executing custom operation on the database: {operation}", LogType.Admin);

            var jsonResult = await databaseService.ExecuteCustomQueryWithReturnValue(operation);

            var result = databaseService.ConvertResultToModel(jsonResult);

            resultService.AddCustomQueryResult(operation, result);

            return(result);
        }