curl --request GET \
  --url https://dev-entitlements-api.spectertech.ai/api/v1/subscription-entitlement-usage \
  --header 'Content-Type: application/json' \
  --data '{
  "subscriptionId": "<string>",
  "planEntitlementQuota": "<string>",
  "usage": 123
}'

{
  "entitled": true
}