Create a payin

curl --request POST \
  --url https://extensions-sandbox.lumx.io/payments/payins \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '{
  "quoteId": "qu_000000000000"
}'

{
  "id": "pa_000000000000",
  "status": "processing",
  "pixCode": "12345678"
}