In Google's Firebase documentation, I found a definition for message_time being the message sent timestamp, but I couldn't find one for event_timestamp. https://support.google.com/firebase/answer/7061705?hl=en
When I converted these times from Epoch to human-readable format, there was a difference of a few seconds (10:14:22 PM vs. 10:14:28 PM). Can someone tell me what the functional difference is between these two fields?