Add sample of banking payload

Author: gcatanese

tools/hmac/payload2.json

@@ -1,29 +1,61 @@
 {
-    "live": "false",
-    "notificationItems": [
-        {
-            "NotificationRequestItem": {
-                "additionalData": {
-                    "metadata.orderTransactionId": "63",
-                    "bookingDate": "2025-02-24T15:21:41Z",
-                    "paymentMethodVariant": "mc",
-                    "store": "Store Amsterdam",
-                    "hmacSignature": "1mSRodZGRNebcLHRXqGxCVa9bbCupkyHkcEUj51wves="
-                },
-                "amount": {
-                    "currency": "EUR",
-                    "value": 32500
-                },
-                "eventCode": "CAPTURE",
-                "eventDate": "2025-02-24T15:21:00+01:00",
-                "merchantAccountCode": "Merchant 1",
-                "merchantReference": "1143-R2",
-                "originalReference": "AB1234567890",
-                "paymentMethod": "mc",
-                "pspReference": "LR1234567890",
-                "reason": "",
-                "success": "true"
-            }
-        }
-    ]
-}
+    "data": {
+      "balancePlatform": "YOUR_BALANCE_PLATFORM",
+      "accountHolder": {
+        "contactDetails": {
+          "email": "test@adyen.com",
+          "phone": {
+            "number": "0612345678",
+            "type": "mobile"
+          },
+          "address": {
+            "houseNumberOrName": "23",
+            "city": "Amsterdam",
+            "country": "NL",
+            "postalCode": "12345",
+            "street": "Main Street 1"
+          }
+        },
+        "description": "Shelly Eller",
+        "legalEntityId": "LE00000000000000000001",
+        "reference": "YOUR_REFERENCE-2412C",
+        "capabilities": {
+          "issueCard": {
+            "enabled": true,
+            "requested": true,
+            "allowed": false,
+            "verificationStatus": "pending"
+          },
+          "receiveFromTransferInstrument": {
+            "enabled": true,
+            "requested": true,
+            "allowed": false,
+            "verificationStatus": "pending"
+          },
+          "sendToTransferInstrument": {
+            "enabled": true,
+            "requested": true,
+            "allowed": false,
+            "verificationStatus": "pending"
+          },
+          "sendToBalanceAccount": {
+            "enabled": true,
+            "requested": true,
+            "allowed": false,
+            "verificationStatus": "pending"
+          },
+          "receiveFromBalanceAccount": {
+            "enabled": true,
+            "requested": true,
+            "allowed": false,
+            "verificationStatus": "pending"
+          }
+        },
+        "id": "AH00000000000000000001",
+        "status": "active"
+      }
+    },
+    "environment": "test",
+    "timestamp": "2024-12-15T15:42:03+01:00",
+    "type": "balancePlatform.accountHolder.created"
+  }