The Azure Management Groups API enables consolidation of multiple subscriptions/resources into an organizational hierarchy and centrally manage access control, policies, alerting and reporting for those resources.
curl \ -H "Authorization: Bearer $ACCESS_TOKEN" \ /providers/Microsoft.Management/operations
curl \ -H "Authorization: Bearer $ACCESS_TOKEN" \ /providers/Microsoft.Management/managementGroups
curl \
-H "Authorization: Bearer $ACCESS_TOKEN" \
/providers/Microsoft.Management/managementGroups/{groupId}