Header: PUT (Code=0.03)
   Uri-Path: ".well-known"
   Uri-Path: "dots"
   Uri-Path: "mitigate"
   Uri-Path: "cuid=dz6pHjaADkaFTbjr0JGBpw"
   Uri-Path: "mid=123"
   If-Match:
   Content-Format: "application/dots+cbor"

   {
    "ietf-dots-signal-channel:mitigation-scope": {
      "scope": [
        {
          "target-prefix": [
             "2001:db8:6401::1/128",
             "2001:db8:6401::2/128"
           ],
          "target-port-range": [
            {
              "lower-port": 80
            },
            {
              "lower-port": 443
            },
            {
               "lower-port": 8080
            }
          ],
          "target-protocol": [
             6
          ],
          "attack-status": "under-attack"
        }
      ]
    }
   }