Get tiers

curl --request GET \
  --url https://app.masivo.ai/api/storefront/v1/tiers \
  --header 'Authorization: Bearer <token>'

{
  "data": [
    {
      "id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
      "name": "<string>",
      "description": "<string>",
      "status": "ACTIVE",
      "level": 5.5,
      "entry_conditions": [
        [
          {
            "type": "Order Value",
            "operator": "grater than",
            "primitive": "string",
            "value": 9.95
          }
        ]
      ],
      "exit_conditions": [
        [
          {
            "type": "Order Value",
            "operator": "grater than",
            "primitive": "string",
            "value": 9.95
          }
        ]
      ]
    }
  ]
}