Different error codes with same request at https://api.twitter.com/1.1/account/verify_credentials.json


I am facing problems with https://api.twitter.com/1.1/account/verify_credentials.json link.
It keeps giving me error code 401 when I try to log the app I created.
whereas if I try to hit the same using Postman client it gives me different error codes at different times
{“errors”:[{“code”:32,“message”:“Could not authenticate you.”}]}
{“errors”:[{“code”:89,“message”:“Token Expired.”}]}

It also authenticates sometimes and gives the result which is shocking as the same request giving different results is confusing

I am usaing the below request:

https://api.twitter.com/1.1/account/verify_credentials.json?oauth_consumer_key=SyIvv1QQu8OLa9VdCwLAE6rFB&oauth_token= 935418624-QfkE0vXjFstcZkWQeMRYKKF7LrOfUgCVClubFrly&oauth_signature_method=HMAC-SHA1&oauth_timestamp=1530709353&oauth_nonce=T7m3p5&oauth_version=1.0&oauth_signature=Ql8gAaRB9d%2FvZ8ym6YVKxrkL4xc%3D

For this I have created a new app and use its cosume_key and token alongwith with consumer secret and token secret.

I also noticed that only one of the oauth_signature generated in the request gets the result and and all the other ones fail.