diff --git a/lib/utils.js b/lib/utils.js
index 8201220..7435410 100644
--- a/lib/utils.js
+++ b/lib/utils.js
@@ -22,13 +22,9 @@ var utils = module.exports = {
         return shaSum.digest('base64');
     },
     generateHashV2: function (apiKey, separator, uri, randomString, secretKey, body) {
-        var payload = randomString + uri;
-        if (Object.keys(body).length > 0) {
-            payload += JSON.stringify(body)
-        }
         var signature = crypto
             .createHmac('sha256', secretKey)
-            .update(payload)
+            .update(randomString + uri + JSON.stringify(body))
             .digest('hex');
 
         var authorizationParams = [