diff --git a/app/src/main/kotlin/net/primal/android/premium/api/PremiumApi.kt b/app/src/main/kotlin/net/primal/android/premium/api/PremiumApi.kt
index 0b648333..34cef8c7 100644
--- a/app/src/main/kotlin/net/primal/android/premium/api/PremiumApi.kt
+++ b/app/src/main/kotlin/net/primal/android/premium/api/PremiumApi.kt
@@ -1,5 +1,6 @@
 package net.primal.android.premium.api
 
+import net.primal.android.premium.api.model.CancelMembershipRequest
 import net.primal.android.premium.api.model.MembershipStatusResponse
 import net.primal.android.premium.api.model.NameAvailableResponse
 import net.primal.android.premium.api.model.PurchaseMembershipRequest
@@ -14,5 +15,5 @@ interface PremiumApi {
 
     suspend fun getMembershipProducts()
 
-    suspend fun cancelMembership(userId: String, purchaseJson: String)
+    suspend fun cancelMembership(userId: String, body: CancelMembershipRequest)
 }
diff --git a/app/src/main/kotlin/net/primal/android/premium/api/PremiumApiImpl.kt b/app/src/main/kotlin/net/primal/android/premium/api/PremiumApiImpl.kt
index f3dc337e..6cddd05b 100644
--- a/app/src/main/kotlin/net/primal/android/premium/api/PremiumApiImpl.kt
+++ b/app/src/main/kotlin/net/primal/android/premium/api/PremiumApiImpl.kt
@@ -12,6 +12,7 @@ import net.primal.android.networking.sockets.errors.WssException
 import net.primal.android.nostr.ext.asPubkeyTag
 import net.primal.android.nostr.model.NostrEventKind
 import net.primal.android.nostr.notary.NostrNotary
+import net.primal.android.premium.api.model.CancelMembershipRequest
 import net.primal.android.premium.api.model.MembershipProductsRequest
 import net.primal.android.premium.api.model.MembershipStatusResponse
 import net.primal.android.premium.api.model.NameAvailableRequest
@@ -103,7 +104,7 @@ class PremiumApiImpl @Inject constructor(
 //        ]
     }
 
-    override suspend fun cancelMembership(userId: String, purchaseJson: String) {
+    override suspend fun cancelMembership(userId: String, body: CancelMembershipRequest) {
         primalApiClient.query(
             message = PrimalCacheFilter(
                 primalVerb = PrimalVerb.WALLET_MEMBERSHIP_CANCEL,
@@ -111,7 +112,7 @@ class PremiumApiImpl @Inject constructor(
                     AppSpecificDataRequest(
                         eventFromUser = nostrNotary.signAppSpecificDataNostrEvent(
                             userId = userId,
-                            content = purchaseJson,
+                            content = NostrJson.encodeToString(body),
                         ),
                     ),
                 ),
diff --git a/app/src/main/kotlin/net/primal/android/premium/api/model/CancelMembershipRequest.kt b/app/src/main/kotlin/net/primal/android/premium/api/model/CancelMembershipRequest.kt
new file mode 100644
index 00000000..f190d2fd
--- /dev/null
+++ b/app/src/main/kotlin/net/primal/android/premium/api/model/CancelMembershipRequest.kt
@@ -0,0 +1,9 @@
+package net.primal.android.premium.api.model
+
+import kotlinx.serialization.SerialName
+import kotlinx.serialization.Serializable
+
+@Serializable
+data class CancelMembershipRequest(
+    @SerialName("android_subscription") val playSubscription: String? = null,
+)
diff --git a/app/src/main/kotlin/net/primal/android/premium/repository/PremiumRepository.kt b/app/src/main/kotlin/net/primal/android/premium/repository/PremiumRepository.kt
index 13b11e41..d57fe5c8 100644
--- a/app/src/main/kotlin/net/primal/android/premium/repository/PremiumRepository.kt
+++ b/app/src/main/kotlin/net/primal/android/premium/repository/PremiumRepository.kt
@@ -4,6 +4,7 @@ import javax.inject.Inject
 import kotlinx.coroutines.withContext
 import net.primal.android.core.coroutines.CoroutineDispatcherProvider
 import net.primal.android.premium.api.PremiumApi
+import net.primal.android.premium.api.model.CancelMembershipRequest
 import net.primal.android.premium.api.model.MembershipStatusResponse
 import net.primal.android.premium.api.model.PurchaseMembershipRequest
 import net.primal.android.premium.domain.PremiumMembership
@@ -59,7 +60,10 @@ class PremiumRepository @Inject constructor(
 
     suspend fun cancelSubscription(userId: String, purchaseJson: String) {
         withContext(dispatchers.io()) {
-            premiumApi.cancelMembership(userId = userId, purchaseJson = purchaseJson)
+            premiumApi.cancelMembership(
+                userId = userId,
+                body = CancelMembershipRequest(playSubscription = purchaseJson),
+            )
             fetchMembershipStatus(userId = userId)
         }
     }