I have following string:
soqDi22c2_A-eY4ahWKJV6GAYgmuJBZ3poNNEixha1lOhXxxoucRuuzmcyDD_9ZYp_ECXRPbrBf6issNn23CUDJrh_A5L3Y5dHhB0o_U5Oq_j4rDCXOJ4Q==
It's a query parameter generated by form on a page. (This is done server-side in ASP.net) We are able to submit this form programatically and get the string we need (it just leads to a detail page of an object [realworld parcel/building, publicly accessible]) and redirect our user to it. However I would like to know, if there is a way to decrypt/deobfuscate this string to know what it contains and if we could possibly just generate these without going through the form (it's a multi step form).
The string also has some sort of expiration, so I sadly cannot provide a link to the result page, as it would stop working after like 10 minutes or so.
It feels a bit like it's base64, but after trying to run it through base64 -d, it says it's invalid.