Represent UUIDv4 string as bytes16 in event topic

Question

I am trying to emit an Event with UUIDv4 indexed string.

Example contract:

contract EventEmitter {
    event ExampleEvent(string indexed id);

    function dispatchEvent(string memory _uuid) public {
        emit DebugEvent(_uuid);
    }
}

Because string can have an arbitrary length, Solidity creates a Keccak-256 hash of the value which ends up in the topic.

for UUID 85abe432-538e-4281-8697-85e18775df5c the value is 0xd4796a1ffda94665a2d19bf19cb326dabce44288e3a53d53a2b60f4c9f411650

So when I'm retrieving past events using web3, I'm unable to get the correct string value

I found this question Bytes16 event topic not being decoded (or encoded?) correctly

Where UUID is represented as bytest16. However I couldn't find a straightforward way to convert a string into bytes16.

Would appreciate any help.