Entitlement was purchased as an app subscription
Entitlement was gifted by developer
Entitlement was granted when the SKU was free
Entitlement was claimed by user for free as a Nitro Subscriber
Entitlement for Discord Nitro subscription
Entitlement was purchased by user
Entitlement was purchased by a dev in application test mode
Entitlement was gifted by another user
See
https://discord.com/developers/docs/monetization/entitlements#entitlement-object-entitlement-types