const updateOrderCalldata: Call[] = [
        {
            contractAddress: contractAddresses.OrderHandler,
            entrypoint: "update_order",
            calldata: [
                key,
                size_delta_usd,
                acceptable_price,
                trigger_price,
                min_output_amount,
                order
            ]
        }
    ];
const account = new Account(provider, senderAddress, privateKey);
const tx = await account.execute(updateOrderCalldata);