const secretKey = new Uint8Array([
    18, 52, 86, 120, 144, 18, 52, 86,
    120, 144, 18, 52, 86, 120, 144, 18,
    18, 52, 86, 120, 144, 18, 52, 86,
    120, 144, 18, 52, 86, 120, 144, 18,