curl --location --request PUT 'https://api.vereinsantrag.de/v1/club/membership-form/custom-fields/' \
--header 'Content-Type: application/json' \
--data-raw '{
"internalName": "string",
"isRequired": true,
"caption": "string",
"type": "Text",
"category": "Member",
"settings": "string",
"order": 0
}'
{
"internalName": "string",
"isRequired": true,
"caption": "string",
"type": "Text",
"category": "Member",
"settings": "string",
"order": 0
}