curl --request GET \
  --url https://app.flowglad.com/api/v1/subscriptions \
  --header 'Authorization: <api-key>'

{
  "data": [
    {
      "id": "<string>",
      "createdAt": "<string>",
      "updatedAt": "<string>",
      "createdByCommit": "<string>",
      "updatedByCommit": "<string>",
      "livemode": true,
      "startDate": "<string>",
      "customerId": "<string>",
      "organizationId": "<string>",
      "status": "trialing",
      "defaultPaymentMethodId": "<string>",
      "backupPaymentMethodId": "<string>",
      "trialEnd": "<string>",
      "currentBillingPeriodStart": "<string>",
      "currentBillingPeriodEnd": "<string>",
      "metadata": {},
      "canceledAt": "<string>",
      "cancelScheduledAt": "<string>",
      "cancellationReason": "<string>",
      "replacedBySubscriptionId": "<string>",
      "isFreePlan": true,
      "priceId": "<string>",
      "runBillingAtPeriodStart": true,
      "interval": "day",
      "intervalCount": "<any>",
      "billingCycleAnchorDate": "<string>",
      "name": "<string>",
      "renews": true,
      "current": true
    }
  ],
  "currentCursor": "<string>",
  "nextCursor": "<string>",
  "hasMore": true,
  "total": 123
}