Event is generated whenever a published Campaign is viewed by the responder.

"event" : {
  "name" : "campaign.viewed",
  "timestamp" : "2021-07-06T10:08:08.683Z",
  "campaign" : {
    "id" : "cccccccccc",
    "name" : "Happy Customers",
    "status" : "LIVE",
    "url" : "https://app.vouchfor.com/c/cccccccccc",
    "admin" : "https://admin.vouchfor.com/admin/cccccccccc",
    "counts" : {
      "views" : 1,
      "starts" : 0,
      "responses" : 0 
    },
    "externalid": "xxxxxxxx"
  },
  "entity" : {
    "id" : "eeeeeeeeee",
    "name" : "Vouch",
    "url" : "https://vouchfor.com",
    "externalid": "xxxxxxxx"
  },
  "account" : {
    "name" : "David Stirk",
    "email" : "david@vouchfor.com"
  }
}