What is the meaning of the jqsign and ktimes fields of post in 2018?

in writing a tool for automatically submitting questionnaires, it turns out that all online tutorials are from before 2018, and the data fields have been updated at post. After thinking about it for a long time, I found that there are two fields that are not clear. Please click on the boss who knows, what do these two fields mean? How do you get it?
below is post"s url,data that already knows what it means.


< H2 > if you don't post the content, I will guess directly: < / H2 > < H1 > the former signature and the latter time < / H1 >