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

 event: application/alto-tips+json,tips-123
 data: {
 data:   "tips-view-uri": "https://alto.example.com/tips/2718281828",
 data:   "tips-view-summary": {
 data:     "updates-graph-summary": {
 data:       "start-seq": 101,
 data:       "end-seq": 106,
 data:       "start-edge-rec" : {
 data:         "seq-i": 0,
 data:         "seq-j": 105
 data:       }
 data:     }
 data:   }
 data: }