Add maximum timestamp to the payload. am: f8527ada -s ours am: 962bfa3b -s ours am: ace31a88 -s ours am: 58183c9d -s ours am: 15ad0e9e -s ours am: 0ae64f6c -s ours Change-Id: I93a36da1fa1187188a278f1ac3b02d5d28393f9f