Upgrade Rancher Service using REST API

curl -u “64247E71B0B579E7A393:8NTg8FHftrcUfiU5kXUN37ARjgHvmgVfnNezfhHp” -X POST -H ‘Accept: application/json’ -H ‘Content-Type: application/json’ -d ‘{“inServiceStrategy”:{“launchConfig”:{“tty”:true, “vcpu”:1, “imageUuid”:“docker:tomcat:9.0-jre8”}}’ ‘http://10.10.1.8:8080/v2-beta/projects/1a7/services/1s88/?action=upgrade

{“id”:“f0d4f155-58c8-4377-8f1a-13a959e4c284”,“type”:“error”,“links”:{},“actions”:{},“status”:400,“code”:“InvalidBodyContent”,“message”:“InvalidBodyContent”,“detail”:null,“baseType”:“error”}