The structure of the “IdByProject” object is described below

"idByProject": {
                  "type": "FieldValue",
                  "key": ""
               }

For this definition, only the type FieldValue, on the property Key The id of the text field is entered in Jira and used to add the idByProject of the ASMS case, so you can identify the case it is related to from the Jira interface.