Looks up the unique entitlement record for a (contact, feature) pair. Returns 404 if no record exists yet.
AuthorizationRequiredBearer <token>API key as Bearer token
In: header
contactIdRequiredstringCRM contact id
featureKeyRequiredstringFeature key
fieldsstringComma-separated list of fields. Valid: id, hostId, contactId, featureKey, balance, grants, totalGranted, totalConsumed, metadata, createdAt, updatedAt. Omit for all.