curl --request POST \
  --url https://services.leadconnectorhq.com/contacts/{contactId}/workflow/{workflowId} \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --header 'Version: <version>' \
  --data '
{
  "eventStartTime": "2021-06-23T03:30:00+01:00"
}
'

{
  "succeded": true
}