とりあえずiOS版のjanestyleの通信キャプチャしたけどAPIKeyしかわからないし、できる人いるならHMKey解析して

Connection:keep-alive
Host:agree.5ch.net
Accept-Language:ja-JP;q=1
Content-Type:application/x-www-form-urlencoded
Accept-Encoding:gzip, deflate, br
X-MonaKey:省略
Accept:*/*
User-Agent:Monazilla/1.00 JaneStyle_iOS/2.7.7.1 iOS15.4.1 iPhone10,1
X-APIKey:3VR1n0X53THKErNL07ex5bL3Hm33dt
X-PostNonce:1654262422.471
Content-Length:129
Referer:https://agree.5ch.net/test/read.cgi/operate/1652610044/
X-PostSig:c15fec69e9dc171b81b9e59b6e13027f30f6f4e91795c23e1ac666592f200f34