RDR3 - _UI_STICKY_FEED_UPDATE_MESSAGE

const title = CreateVarString(10, "LITERAL_STRING", "New title");
const msg = CreateVarString(10, "LITERAL_STRING", "New msg");

const struct = new DataView(new ArrayBuffer(64));
struct.setBigInt64(8*1, BigInt(title), true);
struct.setBigInt64(8*2, BigInt(msg), true);

Citizen.invokeNative("0xBC6F454E310124DA", msgId, struct, 1);