curl --request PATCH \
  --url https://api.messaging.phonovation.com/people/3/persons/upsert \
  --header 'Authorization: <api-key>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "persons": [
    {
      "externalId": "3",
      "firstName": "Jane",
      "lastName": "Smith",
      "address": "67 Farringdon Road",
      "city": "London",
      "country": "United Kingdom",
      "gender": "FEMALE",
      "birthDate": "1966-01-15",
      "middleName": "Janie",
      "preferredLanguage": "en-gb",
      "profilePicture": "http://profile.com",
      "customAttributes": {
        "Contract Expiry": "2018-06-01",
        "Company": "Acme",
        "ShoppingCartList": [
          {
            "productName": "Sneakers",
            "productPrice": 25.33,
            "productCategory": "Sport Sneakers",
            "productImage": "/image1.png"
          },
          {
            "productName": "T-Shirt",
            "productPrice": 9.99,
            "productCategory": "Casual",
            "productImage": "/image2.png"
          }
        ]
      },
      "contactInformation": [
        {
          "identifier": "john.doe@example.com",
          "type": "EMAIL"
        },
        {
          "identifier": "353861234579",
          "type": "PHONE"
        }
      ],
      "tags": [
        "VIP Customers",
        "New Customers"
      ]
    }
  ]
}
'

{
  "errors": [],
  "results": [
    {
      "id": 12345,
      "index": 0,
      "status": "CREATED"
    }
  ]
}