OAuth - Signature Verification Not Matching

[Tony]

Hey team,

I feel like I have followed all the steps to obtain the oauth access token. But when I try calling `rest/me`, I am getting 401, with the following error.

```
    'www-authenticate': "OAuth realm='API - See X-OAuth-Error header for details'",
    'x-oauth-error': 'Authentication Failed - signature verification not matching'

```

I saw a similar thread, but it was concluded it was an account issue. Could I get some help here?

Thanks!

[Tony]

Ah after some debugging. Figured out the root cause, I included the `oauth_callback` for all requests in my interceptor. However, that resulted in all calls but the request for token call to fail