curl -X POST https://api.v2.dealmachine.com/v1/mail/wallet/add-funds \
  -H "Authorization: Bearer dm_sk_live_xxx" \
  -H "Content-Type: application/json" \
  -d '{"amount_cents": 10000, "payment_method_id": "pm_xxx"}'

{
  "data": {
    "payment_intent_id": "pi_xxx",
    "amount_cents": 10000,
    "succeeded": true
  }
}