Matter delete request example:

curl --location --request POST '/platform/v1/webhook/subscribe' \
--header 'Authorization: "Bearer API_TOKEN"'\
--header 'Content-Type: application/json' \
--data-raw '{
"event": "matter/recover",
"target_url": "URL"
}'

Matter recover response example:

{
  "entity_name": "matter",
  "event_type": "recover",
  "data": {
    "matter_id": "al6xvztzpz90q0ku",
    "display_name": "doe",
    "deleted": false,
    "staff_id": "x02d10jwgswmgiok",
    "created_at": "2023-05-02T10:41:26.000+03:00",
    "updated_at": "2023-05-02T10:41:52.000+03:00",
    "business_id": "9hfoc5sqo1mf5yck"
  }