Figure out a way to handle timestamps between different blocks

[reednaa]

Currently, we are checking if swap is a certain amount in the past, and if it is do not underwrite.

However, sometimes this fails. Identify if this issue is because:

• The timestamps on chains diverge from each other.
• There is an issue with the timestamp of the underwriter.
• There is a lag in delivery of events.
• The underwriter is not processing events regularly

Then determine a fix.
One suggestion we talked about is keeping track of the timestamp difference between chains.