post
https://rls.congacloud.com/api/sign/v1/cs-oauth2/token
Standard OAuth2 token endpoint for obtaining access tokens using the client credentials grant flow.
This endpoint is used to exchange OAuth2 client credentials for an access token that can be used to
authenticate API requests. The client credentials should be provided in the request body as
form-urlencoded data with client_id, client_secret, and grant_type.