curl --request GET \
  --url https://app.teable.ai/api/billing/subscription/license \
  --header 'Authorization: Bearer REPLACE_BEARER_TOKEN'

[
  {
    "id": "<string>",
    "instanceId": "<string>",
    "currentPeriodStart": "<string>",
    "currentPeriodEnd": "<string>",
    "quantity": 123,
    "unitAmount": 123,
    "licenseKey": "<string>"
  }
]