Hi rajiv,
we use to hit from postman the request and authorizations are,
our request : https://ads-api-sandbox.twitter.com/1/accounts/gq154f/media_creatives?line_item_id=efmq&account_media_id=7e2
method =post
Authorization:
Consumer Key : 9EaJYXuc2qhvcQB13qBoum7MO
Consumer Secret : x2qMvaaYld0EL5N1F8HLFyBzSKLnzBZwZPZTRD5kDXy8QKQgFy
Token : 745871769618219008-sTrv7oAdz5knRtkvdXBYBbtJciM10iD
Token Secret : TdBgUM5joT0wafqZaHlsXCj75vBNsx4vbj5ln0iTASauu
Signature Method: HMAC_SHA1