Referral Won

Note: This will trigger on any change in milestone on a given referral. The below example is for 'submitted'.
{
  "id": 10012,
  "type": "referral_won",
  "name": "Referral Won",
  "created": 1561572382,
  "source_type": null,
  "source_name": "",
  "billable": true,
  "parameters": {
    "campaign": {
      "id": "09613035-484b-4038-8a67-7359f81114b0"
    },
    "status": {
      "code": "won",
      "label": "Won",
      "type": "won"
    },
    "referral_id": "c3f5666b-dd86-441d-976d-ba77ce4cc98d",
    "feedback": null,
    "show_to_advocate": true,
    "prospect": {
      "id": "4b90a3eb-e6de-403a-8be0-deb43ab48cb3",
      "email": "[email protected]",
      "Full_Name": "Peter Pan",
      "company": "Disney",
      "lead_source": "influitive"
    }
  },
  "points": 0,
  "challenge": {},
  "contact": {
    "id": 7,
    "uuid": "e6b40191-9f87-47bb-a6ec-c5cea61ebe75",
    "first_name": "Sergio",
    "last_name": "Aguero",
    "full_name": "Sergio Aguero",
    "email": "[email protected]",
    "company": "Manchester City",
    "title": "Striker",
    "contact_points": 15665,
    "salesforce_id": "0036100001AnXADAA3",
    "crm_metadata": {
      "type": "Salesforce",
      "contact_id": "0036100001AnXADAA3",
      "account_id": "0016100001Qf1iXAAR"
    },
    "external_systems": {
      "salesforce_contact_id": "0036100001AnXADAA3",
      "salesforce_account_id": "0016100001Qf1iXAAR",
      "salesforce_account_name": "Manchester City",
      "marketo_contact_id": "00P0005hj87jd8k416",
      "marketo_account_id": null,
      "roi_contact_id": null,
      "external_contact_id": "3",
      "external_account_id": "3"
    }
  },
  "additional_data": {}
}