curl --location --request GET 'http://jira.local:8080/jira/rest//rest/api/3/issuesecurityschemes/level/member'
{"maxResults":100,"startAt":0,"total":3,"isLast":true,"values":[{"id":"10000","issueSecurityLevelId":"20010","issueSecuritySchemeId":"10010","holder":{"type":"group","expand":"group"}}]}