How do I use Apache poi to parse the information of a signed docx document?

after we sign a docx document, by decompressing the document, we can view the relevant signature content in the sig1.xml in the _ xmlSignatures directory. I want to know how to obtain the relevant content in the sig1.xml through Apache POI, such as signature time, signature certificate, etc.?

Mar.16,2021
MySQL Query : SELECT * FROM `codeshelper`.`v9_news` WHERE status=99 AND catid='6' ORDER BY rand() LIMIT 5
MySQL Error : Disk full (/tmp/#sql-temptable-64f5-1e4f8e6-4487f.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1e4f8e6-4487f.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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