public Guid CreateOrder(Guid userId, string type)
        {
            int amount = 0;

            switch (type)
            {
            case "silver":
                amount = Convert.ToInt32(_systemParameterRepository.GetByParameterName("S").ParameterValue);
                break;

            case "gold":
                amount = Convert.ToInt32(_systemParameterRepository.GetByParameterName("G").ParameterValue);
                break;

            case "platinum":
                amount = Convert.ToInt32(_systemParameterRepository.GetByParameterName("P").ParameterValue);
                break;
            }
            var        price     = amount * Convert.ToInt32(_systemParameterRepository.GetByParameterName("T").ParameterValue);
            var        orderId   = Guid.NewGuid();
            var        timestamp = DateTime.Now;
            TokenOrder order     = new TokenOrder
            {
                Id               = orderId,
                Amount           = amount,
                Price            = price,
                UserId           = userId,
                StatusId         = _tokenOrderStatusRepository.GetByType("SUBMITTED").Id,
                TimestampCreated = timestamp,
                TimestampChanged = timestamp
            };

            _tokenOrderRepository.Save(order);
            return(orderId);
        }