diff --git a/CHIPs/chip-0039.md b/CHIPs/chip-0039.md
index ecf3b74e..f3c07741 100644
--- a/CHIPs/chip-0039.md
+++ b/CHIPs/chip-0039.md
@@ -115,12 +115,18 @@ Fee services should:
 6. Service returns complete spend bundle to client
 7. Client can verify and submit the transaction
 
-### Example Spend Bundle Modification
+### HTTP Request/Response Examples
+
+#### Request
+
+```http
+POST /api/fees HTTP/1.1
+Content-Type: application/json
 
-```
-# Original spend bundle:
 {
-    "coin_spends": [
+    "network": "mainnet",
+    "spendBundle": {
+        "coin_spends": [
         {
             "coin": {
                 "parent_coin_info": "0x...",
@@ -134,9 +140,20 @@ Fee services should:
     "aggregated_signature": "0x..."
 }
 
-# After fee service:
+    },
+    "submit": false
+}
+```
+
+#### Success Response
+
+```http
+HTTP/1.1 201 OK
+Content-Type: application/json
+
 {
-    "coin_spends": [
+    "spendBundle": {
+        "coin_spends": [
         # Original spend
         {
             "coin": {
@@ -159,6 +176,9 @@ Fee services should:
         }
     ],
     "aggregated_signature": "0x..."  # Updated to include fee spend
+    },
+    "fees": 100000,
+    "submitted": false
 }
 ```