curl --request DELETE \
  --url https://api.voucherify.io/v2/loyalties/tier-structures/{id}/tiers/{tierId} \
  --header 'Authorization: Bearer <token>' \
  --header 'X-App-Id: <api-key>' \
  --header 'X-App-Token: <api-key>'

{
  "id": "<string>",
  "tier_structure_id": "<string>",
  "name": "<string>",
  "downgrade": {},
  "metadata": {},
  "created_at": "2023-11-07T05:31:56Z",
  "qualification_rules": {
    "min_value": 1,
    "max_value": 1,
    "segment": {
      "id": "<string>"
    }
  },
  "updated_at": "2023-11-07T05:31:56Z"
}