curl --request POST \
  --url 'https://api.example.com/v2/track?api_key=' \
  --header 'Content-Type: application/json' \
  --data '
{
  "tenant": "<string>",
  "market": "<string>",
  "events": [
    {
      "transaction_id": "<string>",
      "user_id": "<string>",
      "session_id": "<string>",
      "dsid": "<string>",
      "event_type": "<unknown>"
    }
  ]
}
'

{
  "detail": [
    {
      "loc": [
        "<string>"
      ],
      "msg": "<string>",
      "type": "<string>"
    }
  ]
}