Equipment Object Navigator long Aurena URL

If I Decode the cryptic part of the URL’s from Base64 format, it looks like everything is repeated several times!
What parts of the URL is required?

Decoded and anonymized and split up its like this:

https://**ifs*.*:*/main/ifsapplications/web/page/EquipmentObjectStructureNavigation/EquipmentObjectPageF
$filter=MchCode eq '*'
treefilter=PlannedForOperation true,
InOperation true,
OutOfOperation true,
Scrapped true
record=(MchCode='*',Contract='*')
treeviewrec=(MchCode='*',Contract='*')
treenodeid=CONTRACT=*MCHCODE=*
CONTRACT=*MCHCODE=*
CONTRACT=*MCHCODE=*
CONTRACT=*MCHCODE=*
{
  "a":"virtual-1",
  "b":"*",
  "i":"EquipmentObjectPageF",
  "f":"/Page",
  "g":"EquipmentObjectStructureNavigation",
  "e":"EquipmentObjectNavigator",
  "j":"EquipObjectStructureTree",
  "l":"EquipmentObjectStructureNavigation",
  "h":"MchCode eq '*' and Contract eq '*'",
  "d":true,"searchContext":"EquipObjectNavigatorPageFilter.MchCode:'*',
  EquipObjectNavigatorPageFilter.Contract:'*',
  EquipObjectNavigatorPageFilter.StructureInTree:'F'",
  "navicontext":"F",
  "treefilter":"PlannedForOperation true,
  InOperation true,
  OutOfOperation true,
  Scrapped true",
  "searchfilter":"(startswith(MchCode,'*'))"
}

This is what I want to open up using the URL (anonymized)

With IEE it works with a very logical and simple URL, 😎
why is it so big difference in how the URL’s are created?