Apis for matter resources
https://api-sandbox.lawvu.com/matter-apis/
https://api.lawvu.com/matter-apis/
The status message to add
https://api-sandbox.lawvu.com/matter-apis/v1/matters/{matterId}/statusMessages
https://api.lawvu.com/matter-apis/v1/matters/{matterId}/statusMessages
{ "StatusMessage": "Test status message" }