Thanks for the information, it was a tremendous help.
This is what I used for subject:
"ssl_subject\="(CN=(?<ssl_subject_common_name>[^=]*))?(C=(?<C>[^=]*))?(S=(?<ssl_subject_state>[^=]*))?(O=(?<ssl_subject_organization>[^=]*))?(OU=(?<ssl_subject_unit>[^=]*))?" ssl_start_time"
This is what I used for issuer:
ssl_issuer\="(CN=(?<ssl_issuer_common_name>[^=]*))?(C=(?<C>[^=]*))?(S=(?<ssl_issuer_state>[^=]*))?(O=(?<ssl_issuer_organization>[^=]*))?(OU=(?<ssl_issuer_unit>[^=]*))?" ssl_hash
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