hasher

type CancelOrder struct {
	ContractAddr common.Address
	OrderHash    []byte
	UserAddr     common.Address
	Nonce        *big.Int
}

type CreateOrder struct {
	ContractAddr        common.Address
	FuturesContractHash []byte
	UserAddr            common.Address
	Amount              *big.Int
	Price               *big.Int
	Side                bool
	Nonce               *big.Int
	Leverage            *big.Int
}