curl --request POST \
  --url https://api.{your-broker}.slate-labs.com/customers/register \
  --header 'Content-Type: application/json' \
  --data '
{
  "email": "jsmith@example.com",
  "phone": "<string>",
  "password": "<string>",
  "first_name": "<string>",
  "last_name": "<string>",
  "country": "<string>",
  "affiliate_id": "<string>",
  "campaign_id": "<string>",
  "funnel": "<string>",
  "affiliate_lead_id": "<string>",
  "promo_code": "<string>",
  "source": "organic"
}
'

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