How to write regex?

[Ash1]

form the below logs i want to capture  "appDesc" data using regex.

2023-05-02 22:27:20,100 | info application status https:www.codeurl
[
Response: 200 ok- https:www.codeurl
"appDesc" : "User not within error limit"
{
"appcd" : "0",
"appDesc" : "fraud app dected risk tolerance"
}   ],

2023-05-02 22:27:20,100 | info application status https:www.codeurl
[
Response: 200 ok- https:www.codeurl
"appDesc" : "User not within error limit"
{
"appcd" : "0",
"appDesc" : "fraud app dected risk tolerance"
}   ],

[ITWhisperer]

https://regex101.com/r/2G9G0h/1

appDesc\"\s:\s\"(?<appDesc>[^\"]+)

| rex max_match=0 "appDesc\"\s:\s\"(?<appDesc>[^\"]+)"