I might have to use a filter like "Tjeneste eq Ansattes representant" to find the right row that show the correct "role" in the column "Tjeneste".

Here's the output:
{"@odata.etag":"\"1\"","ItemInternalId":"49","ID":49,"Title":"Ansattes representant","AnsvarligNMAS":[{"@odata.type":"#Microsoft.Azure.Connectors.SharePoint.SPListExpandedUser","Claims":"i:0#.f|membership|morten.sandell@nmas.no","DisplayName":"Morten Sandell","Email":"morten.sandell@nmas.no","Picture":"https://nmasno.sharepoint.com/sites/intranett/_layouts/15/UserPhoto.aspx?Size=L&AccountName=morten.sandell@nmas.no","Department":"Salg","JobTitle":"Produktsjef / Product Manager"}],"AnsvarligNMAS@odata.type":"#Collection(Microsoft.Azure.Connectors.SharePoint.SPListExpandedUser)","AnsvarligNMAS#Claims":["i:0#.f|membership|morten.sandell@nmas.no"],"AnsvarligNMAS#Claims@odata.type":"#Collection(String)","Modified":"2021-05-20T10:40:15Z","Created":"2021-05-20T10:40:15Z","Author":{"@odata.type":"#Microsoft.Azure.Connectors.SharePoint.SPListExpandedUser","Claims":"i:0#.f|membership|patrick.pedersen@nmas.no","DisplayName":"Patrick Pedersen","Email":"Patrick.Pedersen@nmas.no","Picture":"https://nmasno.sharepoint.com/sites/intranett/_layouts/15/UserPhoto.aspx?Size=L&AccountName=Patrick.Pedersen@nmas.no","Department":"Salg","JobTitle":"Applikasjonsspesialist / Application Specialist"},"Author#Claims":"i:0#.f|membership|patrick.pedersen@nmas.no","Editor":{"@odata.type":"#Microsoft.Azure.Connectors.SharePoint.SPListExpandedUser","Claims":"i:0#.f|membership|patrick.pedersen@nmas.no","DisplayName":"Patrick Pedersen","Email":"Patrick.Pedersen@nmas.no","Picture":"https://nmasno.sharepoint.com/sites/intranett/_layouts/15/UserPhoto.aspx?Size=L&AccountName=Patrick.Pedersen@nmas.no","Department":"Salg","JobTitle":"Applikasjonsspesialist / Application Specialist"},"Editor#Claims":"i:0#.f|membership|patrick.pedersen@nmas.no","{Identifier}":"Lists%252fKontakter%2bog%2btjenester%2binternt%252f49_.000","{IsFolder}":false,"{Thumbnail}":{"Large":null,"Medium":null,"Small":null},"{Link}":"https://nmasno.sharepoint.com/sites/intranett/_layouts/15/listform.aspx?PageType=4&ListId=a096a8fa%2D088c%2D4e56%2D9c5c%2Db4c63a378e28&ID=49&ContentTypeID=0x0100F781B92FCAE8F04DB9A81EFF47429C36","{Name}":"Ansattes representant","{FilenameWithExtension}":"Ansattes representant","{Path}":"Lists/Kontakter og tjenester internt/","{FullPath}":"Lists/Kontakter og tjenester internt/49_.000","{HasAttachments}":false,"{VersionNumber}":"1.0"}]}}
I'm trying to get that value Email:morten.sandell@nmas.no