This event should be fired anytime the user clicks a button to load more Pixlee content for "grid or photowall" style widgets

{
  "uid": "d284fb3c-5c29-e316-ed71-8ce7852f8e50", //required, any unique string that tracks the user currently browsing
  "parentURL": "https://referral-url.com", //optional but recommended, the URL on which the user loaded the widget
  "API_KEY": "abcdefg", //required, the Pixlee ACCOUNT PRIVATE API KEY
  "page": 1, //required, equivalent to the number of times "Load More" was triggered
  "album_id": 12345, //required, the Pixlee album id from which you are displaying content
}
Language
Authentication
Query
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