POST /updates/properties HTTP/1.1
  Host: alto.example.com
  Accept: text/event-stream,application/alto-error+json
  Content-Type: application/alto-updatestreamparams+json
  Content-Length: 339

  {
    "add": {
      "fci-propmap-stream": {
        "resource-id": "filtered-cdnifci-property-map",
        "input": {
          "properties": [ "my-default-cdnifci.cdni-capabilities",
                          "my-default-networkmap.pid" ],
          "entities": [ "ipv4:192.0.2.0/24",
                        "ipv6:2001:db8::/32" ]
        }
      }
    }
  }

  HTTP/1.1 200 OK
  Connection: keep-alive
  Content-Type: text/event-stream

  event: application/alto-updatestreamcontrol+json
  data: {"control-uri":
  data: "https://alto.example.com/updates/streams/1414213562373"}

  event: application/alto-cdni+json,fci-propmap-stream
  data: { ... filtered property map ... }

  event: application/merge-patch+json,fci-propmap-stream
  data: {
  data:   "property-map": {
  data:     "meta": {
  data:       "dependent-vtags": [
  data:         { "resource-id": "my-default-cdnifci",
  data:           "tag": "2beeac8ee23c3dd1e98a73fd30df80ece9fa5627"},
  data:         { "resource-id": "my-default-networkmap",
  data:           "tag": "7915dc0290c2705481c491a2b4ffbec482b3cf63"}
  data:       ]
  data:     },
  data:     "ipv4:192.0.2.0/24": {
  data:       "my-default-cdnifci.cdni-capabilities": [
  data:         { "capability-type": "FCI.DeliveryProtocol",
  data:           "capability-value": {
  data:             "delivery-protocols": ["http/1.1", "https/1.1"]}}]
  data:     }
  data:   }
  data: }

  event: application/json-patch+json,fci-propmap-stream
  data: [
  data:   { "op": "replace",
  data:     "path": "/meta/dependent-vtags/0/tag",
  data:     "value": "61b23185a50dc7b334577507e8f00ff8c3b409e4"
  data:   },
  data:   { "op": "replace",
  data:     "path":
  data:     "/property-map/countrycode:fr/my-default-networkmap.pid",
  data:     "value": "pid5"
  data:   }
  data: ]