Extract a time duration string in container logs from Elasticsearch


I’m new to Grafana and currently working on container logs from Elasticsearch as data source.

I am trying to extract from the message field of the following logs the time duration from the and display it on my Grafana dashboard - time series with the x-axis (time of log) and y-axis (time duration in the message field).

I already tried doing some transformations to extract the time duration in the logs but still no luck.

Anyone knows how can I accomplish this?