@Override
    public void toData(DataOutput out,
        SerializationContext context) throws IOException {
      super.toData(out, context);
      DataSerializer.writeObject(clientID, out);
    }
Utility to set the new value in the EntryEventImpl based on the given deserialization value;
also called from QueuedOperation
geode-core/src/main/java/org/apache/geode/internal/cache/UpdateOperation.java