Add maximum timestamp to the payload. am: 8d853bab am: d7edd85f am: d494488b am: 0b6878b7 -s ours am: aec8cf10 -s ours am: e0e66046 -s ours Change-Id: Iafcf14b9c8f0f24106ba1925adce0c0e8f11f9ef