CatalogToken: External catalog token
Pricing: Wallkit Pricing
ExternalOrder: External transaction ID
Transaction: Stored transaction
Target: Target user
UserAndPricing: Target user and Pricing
Membership: External membership record
MemberContext: Established member context
Decision: Allow or deny decision
CatalogToken → Pricing: resource mapping
ExternalOrder → Transaction: resource lookup
Transaction → Target: returned user_id
UserAndPricing → Membership: separate recording request
MemberContext → Decision: separate content check