incoming jira
httpClient.put("/rest/api/3/issue/${issue.key}", """

{
    "fields": {
        "customfield_10003": [
            {
                "self": "https://mathieulepoutredemo.atlassian.net/rest/api/3/user?accountId=624aaf025f63fd0069b4da25",
                "accountId": "624aaf025f63fd0069b4da25"
            }
        ]
    }
}


""")