if l.Topics[0] == sfcpos.Topics.UpdatedMinGasPrice && len(l.Data) >= 32 {
                minGasPrice := new(big.Int).SetBytes(l.Data[0:32])
                constants := s.app.GetSfcConstants(epoch)
                constants.MinGasPrice = minGasPrice
                s.app.SetSfcConstants(epoch, constants)