curl --location --request POST '/readers/723f3741-9c54-41d9-921b-f55e95eaafc6/entitlements' \
--header 'x-api-key: <api-key>' \
--header 'Content-Type: application/json' \
--data-raw '{
"feature_id": "ba6c7b2c-38fc-4a78-a187-51c7bbbd5c50"
}'{
"data": {
"id": "497f6eca-6276-4993-bfeb-53cbbbba6f08",
"feature_key": "string"
}
}