Update sgn.json

domains/sgn.json

@@ -7,6 +7,14 @@
         "NS": [
             "magali.ns.cloudflare.com",
             "hal.ns.cloudflare.com"
+        ],
+        "DS": [
+            {
+                "key_tag": 2371,
+                "algorithm": 13,
+                "digest_type": 2,
+                "digest": "A7EFE346DD87966C9A84B0FBB28C0739027AC008B4205CB538FA17B23955B495"
+            }
         ]
     }
 }