How to use staticcall with inline assembly that returns bytes data?

Question

I've been trying to write a function that takes contractAddress and bytes functionSignature as input parameters and returns bytes data from the static call in inline assembly.

For some reason it keeps returning 0x0 instead of the data

---

im clearly doing something wrong

function getUintAnswer(address _contractAddress, bytes memory data) public view returns (bytes memory result) {
    assembly {

        // Call the target contract
        let success := staticcall(64000, _contractAddress, data, 4/*input bytes*/, result, 160/*output bytes*/)

        // failed
        if iszero(success) { 
            revert(0, 0) 
            }
    }
}

i expected the result to be:

0x00000000000000000000000000000000000000000000000200000000000027fa0000000000000000000000000000000000000000000000000000001bf2c11b5e00000000000000000000000000000000000000000000000000000000639ce2e300000000000000000000000000000000000000000000000000000000639ce2e300000000000000000000000000000000000000000000000200000000000027fa

and got a revert

im trying to extract the second int256 and cast it to a uint256 in the most gas efficient way and i been stuck trying to figure out how to get the static call to successfully return a value