Updated Content-Length to match the actual payload length
MODIFY
versions/3.0.md
versions/3.0.md
@@ -1837,7 +1837,7 @@ For example, given the following HTTP request:
POST /subscribe/myevent?queryUrl=http://clientdomain.com/stillrunning HTTP/1.1
Host: example.org
Content-Type: application/json
-Content-Length: 123
+Content-Length: 187
{
"failedUrl" : "http://clientdomain.com/failed",

Updated Content-Length to match the actual payload length