Call Smart Contract

This API simulates the smart contract execution locally without submitting the smart contract transaction to the blockchain. It is useful to evaluate the execution result, calculate the gas cost, etc.
RPC Method: script.CallSmartContract
Query Parameters
sctx_bytes: the signed transaction bytes
vm_return: the return of the virtual machine
contract_address: the address of the corresponding smart contract
gas_used: amount of gas used for the smart contract execution
vm_error: error returned by the virtual machine if any