curl --request POST \
  --url https://app.ezzydoc.com/EzzyService.svc/Rest/mergeSolution \
  --header 'Content-Type: application/json' \
  --data '
{
  "solution_id": 123,
  "make_workflow_active": true,
  "workflow_ids": [
    123
  ]
}
'

{
  "invoice_id": 123,
  "message": "<string>"
}