https://authz.constantcontact.com/oauth2/default/v1/authorize?client_id=5590c74b-97e8-4982-a8eb-6e6d61d31223&redirect_uri=https://xoplatforms.com/connect/constantcontact/&response_type=code&state=cfed2e6e79a3720cee9f3157c7c8119d&nonce=G2BU0E2W&scope=contact_data%20campaign_data