curl --request PATCH \
  --url https://api.getovra.com/cards/{cardId}/spend-limit \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "spendLimitEuros": 1
}
'

{
  "cardId": "<string>",
  "spendLimitEuros": 123
}