Mongodb auditlog configuration

Hi , i just configured our server to be enabled with auditlog on BSON Format , my problem is when im trying to extract it , the timestamp is a numberlong format , can it be converted to a standard time format… Kind of hard to present the data when requested to be checked.

Here is the entry that i am getting

“ts”: {
“$date”: {
“$numberLong”: “1600617670673”

Thank you in advance