def create_contentkey_authorization_policy(access_token, content):
path = '<STR_LIT>'<EOL>endpoint = '<STR_LIT>'.join([ams_rest_endpoint, path])<EOL>body = content<EOL>return do_ams_post(endpoint, path, body, access_token)<EOL>
Create Media Service Content Key Authorization Policy.

    Args:
        access_token (str): A valid Azure authentication token.
        content (str): Content Payload.

    Returns:
        HTTP response. JSON body.