@Override
  public void fromData(DataInput in,
      DeserializationContext context) throws IOException, ClassNotFoundException {
    super.fromData(in, context);
    processorId = DataSerializer.readPrimitiveInt(in);
    regionName = DataSerializer.readString(in);
    key = DataSerializer.readObject(in);
  }
Sends the region name and key of the entry that we want the last access time for. If for any
reason this message can not obtain the last access time then zero will be returned.

@since Geode 1.4
geode-core/src/main/java/org/apache/geode/internal/cache/LatestLastAccessTimeMessage.java