POST
http://xx.yy.tt.rr:30274/nbi/api/v4/hub
{
"callback": "http://bbsportalhost:port/serviceOrderStateListener/listener/v1/",
"query":"eventType = ServiceOrderStateChangeNotification,ServiceOrderCreationNotification,ServiceOrderItemStateChangeNotification"
}

{ 
  "eventType": “ServiceOrderItemStateChangeNotification",
  "eventDate": "2019-02-21T14:21:31.740Z",
  "eventId": "34556",
  "event": {"id":"5c77b3bafdddde03cf30cde6","href":"serviceOrder/5c77b3bafdddde03cf30cde6","externalId":"extid2","state":"acknowledged","orderDate":"2019-02-28T10:11:06.410Z","completionDateTime":"2019-01-24T22:52:32.789Z","orderItem":[{"orderMessage":[],"id":"A","action":"add","state":"acknowledged","percentProgress":"0","@type":null,"@schemaLocation":null,"@baseType":null,"orderItemRelationship":[],"service":{"id":null,"href":null,"name":null,"serviceState":null,"@type":null,"@schemaLocation":null,"serviceCharacteristic":null,"serviceRelationship":null,"relatedParty":null,"serviceSpecification":{"id":"1e3feeb0-8e36-46c6-862c-236d9c626439","href":null,"name":null,"version":null,"targetServiceSchema":null,"@type":null,"@schemaLocation":null,"@baseType":null}},"orderItemMessage":[]},{"orderMessage":[],"id":"B","action":"add","state":"acknowledged","percentProgress":"0","@type":null,"@schemaLocation":null,"@baseType":null,"orderItemRelationship":[{"type":"reliesOn","id":"A"}],"service":{"id":null,"href":null,"name":null,"serviceState":null,"@type":null,"@schemaLocation":null,"serviceCharacteristic":null,"serviceRelationship":null,"relatedParty":null,"serviceSpecification":{"id":"1e3feeb0-8e36-46c6-862c-236d9c626439","href":null,"name":null,"version":null,"targetServiceSchema":null,"@type":null,"@schemaLocation":null,"@baseType":null}},"orderItemMessage":[]}]}} 
}

{ 
  "eventType": “ServiceOrderStateChangeNotification",
  "eventDate": "2019-02-21T14:21:31.740Z",
  "eventId": "34556",
   “event": {"id": "5af2e0914bf3d66721c09c3f",
                     "href": "serviceOrder/5af2e0914bf3d66721c09c3f",
                     "externalId": " BBS_BSS_TrackindId3584 ",
                     "state": “COMPLETED",
                     "orderDate": "2019-02-21T13:39:20.540Z"
                  }
}

{ 
  "eventType": “ServiceAtributeValueChangeNotification",
  "eventDate": "2019-02-26T13:78:89.564Z",
  "eventId": "9c55b3bafdddde03cf30cde6",
   “event": {"id": “506ba850-9c03-4f98-8bab-2f684a89fafb ",
                     “name” : “bbs-cfs-1276”,
                     "href": "service/506ba850-9c03-4f98-8bab-2f684a89fafb ",
                     "state": “assigned",
                     "relatedParty": {
                                              "id": "BBSCFSCustomerID1",
                                               “name”: “Joe Bob”
                                                },
                     "type": "service-instance"
                  }
}