Nonce value for Digest Auth authorization type

I’m accessing a web service from Microsoft NAV dynamics. I’m using Digest auth authorization type to access the service. I’ve set all the fields (Realm, Algorithm, qop, Nonce count, cnonce) except Nonce which I can figure out the value.

Postman is auto generating this value from my username and password but I can figure out the encryption used for the Nonce value.