<firmware gtype="FuEfiVss2VariableStore">
  <size>0xdfd4</size> <!-- 0xDF9C is 0xE000−0x2C -->
  <firmware gtype="FuEfiVssAuthVariable">
    <id>CustomMode</id>
    <state>variable-added</state>
    <data>aGVsbG8gd29ybGQ=</data>
    <vendor_guid>c076ec0c-7028-4399-a072-71ee5c448b9f</vendor_guid>
    <attributes>non-volatile,bootservice-access</attributes>
  </firmware>
</firmware>
