diff --git a/src/sections/subscriptions.ts b/src/sections/subscriptions.ts
index 99809f58..fbfb217e 100644
--- a/src/sections/subscriptions.ts
+++ b/src/sections/subscriptions.ts
@@ -19,36 +19,54 @@ export type NotificationType =
   | 'FulfillmentOrderStatus'
   | 'ReportProcessingFinished'
 
-enum NotificationTypeEnum {
-  AnyOfferChanged = 'AnyOfferChanged',
-  FeedProcessingFinished = 'FeedProcessingFinished',
-  FeePromotion = 'FeePromotion',
-  FulfillmentOrderStatus = 'FulfillmentOrderStatus',
-  ReportProcessingFinished = 'ReportProcessingFinished',
-}
-
-const NotificationType = enumeration(NotificationTypeEnum)
-
-interface MarketplaceIdAndDestinationOnlyParameters {
-  MarketplaceId: string
-  Destination: Destination
+export interface Destination {
+  DeliveryChannel: DeliveryChannel
+  AttributeList: AttributeKeyValue[]
 }
 
-interface AttributeKeyValue {
+export interface AttributeKeyValue {
   Key: AttributeKeyValueKeys
   Value: string
 }
-interface Destination {
-  DeliveryChannel: DeliveryChannel
-  AttributeList: AttributeKeyValue[]
+
+export interface Subscription {
+  NotificationType: NotificationType
+  Destination: Destination
+  IsEnabled: boolean
 }
+
 interface SubscriptionActionParameters {
   MarketplaceId: string
   NotificationType: NotificationType
   Destination: Destination
 }
 
-type RegisterDestinationParameters = MarketplaceIdAndDestinationOnlyParameters
+export type DeleteSubscriptionParameters = SubscriptionActionParameters
+interface MarketplaceIdAndDestinationOnlyParameters {
+  MarketplaceId: string
+  Destination: Destination
+}
+
+export type RegisterDestinationParameters = MarketplaceIdAndDestinationOnlyParameters
+export type DeregisterDestinationParameters = MarketplaceIdAndDestinationOnlyParameters
+export interface ListRegisteredDestinationsParameters {
+  MarketplaceId: string
+}
+export interface UpdateSubscriptionParameters {
+  MarketplaceId: string
+  Subscription: Subscription
+}
+export type GetSubscriptionParameters = SubscriptionActionParameters
+
+enum NotificationTypeEnum {
+  AnyOfferChanged = 'AnyOfferChanged',
+  FeedProcessingFinished = 'FeedProcessingFinished',
+  FeePromotion = 'FeePromotion',
+  FulfillmentOrderStatus = 'FulfillmentOrderStatus',
+  ReportProcessingFinished = 'ReportProcessingFinished',
+}
+
+const NotificationType = enumeration(NotificationTypeEnum)
 
 const RegisterDestinationResponse = Codec.interface({
   RegisterDestinationResponse: Codec.interface({
@@ -56,18 +74,12 @@ const RegisterDestinationResponse = Codec.interface({
   }),
 })
 
-type DeregisterDestinationParameters = MarketplaceIdAndDestinationOnlyParameters
-
 const DeregisterDestinationResponse = Codec.interface({
   DeregisterDestinationResponse: Codec.interface({
     DeregisterDestinationResult: exactly(''),
   }),
 })
 
-interface ListRegisteredDestinationsParameters {
-  MarketplaceId: string
-  [key: string]: string
-}
 enum AttribueKeyValueKeysEnum {
   sqsQueueUrl = 'sqsQueueUrl',
 }
@@ -93,8 +105,6 @@ const ListRegisteredDestinations = Codec.interface({
   DestinationList: ensureArray('member', Destination),
 })
 
-type ListRegisteredDestinations = GetInterface<typeof ListRegisteredDestinations>
-
 const ListRegisteredDestinationsResponse = Codec.interface({
   ListRegisteredDestinationsResponse: Codec.interface({
     ListRegisteredDestinationsResult: ListRegisteredDestinations,
@@ -109,12 +119,6 @@ const SendTestNotificationToDestinationResponse = Codec.interface({
   }),
 })
 
-interface Subscription {
-  NotificationType: NotificationType
-  Destination: Destination
-  IsEnabled: boolean
-}
-
 interface CreateSubscriptionParameters {
   MarketplaceId: string
   Subscription: Subscription
@@ -126,8 +130,6 @@ const CreateSubscriptionResponse = Codec.interface({
   }),
 })
 
-type GetSubscriptionParameters = SubscriptionActionParameters
-
 const Subscription = Codec.interface({
   NotificationType,
   Destination,
@@ -138,32 +140,26 @@ const GetSubscription = Codec.interface({
   Subscription,
 })
 
-type GetSubscription = GetInterface<typeof GetSubscription>
-
 const GetSubscriptionResponse = Codec.interface({
   GetSubscriptionResponse: Codec.interface({
     GetSubscriptionResult: GetSubscription,
   }),
 })
 
-type DeleteSubscriptionParameters = SubscriptionActionParameters
-
 const DeleteSubscriptionResponse = Codec.interface({
   DeleteSubscriptionResponse: Codec.interface({
     DeleteSubscriptionResult: exactly(''),
   }),
 })
 
-interface UpdateSubscriptionParameters {
-  MarketplaceId: string
-  Subscription: Subscription
-}
-
 const UpdateSubscriptionResponse = Codec.interface({
   UpdateSubscriptionResponse: Codec.interface({
     UpdateSubscriptionResult: exactly(''),
   }),
 })
+
+export type ListRegisteredDestinations = GetInterface<typeof ListRegisteredDestinations>
+export type GetSubscription = GetInterface<typeof GetSubscription>
 export class Subscriptions {
   constructor(private httpClient: HttpClient) {}
 
@@ -301,7 +297,9 @@ export class Subscriptions {
       resource: Resource.Subscriptions,
       version: SUBSCRIPTIONS_API_VERSION,
       action: 'ListRegisteredDestinations',
-      parameters,
+      parameters: {
+        MarketplaceId: parameters.MarketplaceId,
+      },
     })
 
     return ListRegisteredDestinationsResponse.decode(response).caseOf({