curl --request POST \
  --url https://api.comm.com/api/v1/contacts/upsert \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "contacts": [
    {
      "country": "<string>",
      "contact_id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
      "phone_normalized": "<string>",
      "email_normalized": "<string>",
      "email_is_good": 123,
      "email_is_good_reason": 123,
      "name": "<string>",
      "state_id": 123,
      "state_id_reason": 123,
      "custom_fields": [
        {
          "name": "<string>",
          "value": "<string>",
          "type": "string"
        }
      ],
      "network_brand": "<string>",
      "mcc": "<string>",
      "mnc": "<string>",
      "foreign_id": "<string>",
      "raw_response": "<string>"
    }
  ],
  "webhook_request_id": "3c90c3cc-0d44-4b50-8888-8dd25736052a"
}
'

{
  "message": "Job dispatched",
  "jobs_count": "<string>",
  "automation_run_id": "<string>",
  "webhook_request_id": "<string>",
  "contacts_count": "<string>"
}