curl --request GET \
  --url https://{cluster}.voucherify.io/v1/loyalties/{campaignId}/tiers/{loyaltyTierId} \
  --header 'X-App-Id: <api-key>' \
  --header 'X-App-Token: <api-key>'

{
  "id": "ltr_7rVIPlPzdSFwpnbCcUXgwzH2",
  "name": "Tier 1 - Top",
  "campaign_id": "camp_fkZ28pe7DUAEmmabofkxHI8N",
  "metadata": {
    "has_funds": true
  },
  "created_at": "2022-11-09T06:26:54.797Z",
  "updated_at": "2022-11-25T11:27:58.578Z",
  "earning_rules": {
    "ern_95aq3JaE5A8xzHjoJPYNRqXZ": {
      "type": "MULTIPLY",
      "multiplier": 3
    },
    "ern_AdlWO2yt6b6llWsibIdiRXVE": {
      "type": "MULTIPLY",
      "multiplier": 5
    },
    "ern_HnRXyJHoj3E79r3KUWhgMgtD": {
      "type": "MULTIPLY",
      "multiplier": 3
    },
    "ern_raVUcdXruvXGuzm682ESrAzt": {
      "type": "CUSTOM",
      "points": 200
    }
  },
  "rewards": {
    "rewa_Or6gWZ5ASuGkBLjOf0IyiD4k": {
      "type": "CUSTOM",
      "points": 300
    }
  },
  "config": {
    "points": {
      "from": 500,
      "to": 1000
    }
  },
  "points": {
    "from": 500,
    "to": 1000
  },
  "object": "loyalty_tier"
}