curl --location --request GET 'https://api.conexteo.com/subaccount/1234' \
--header 'X-APP-ID: <api-key>' \
--header 'X-API-KEY: <api-key>'
{
"subaccount_id": 100,
"email": "subaccount@mail.com",
"social_reason": "raison sociale",
"phone_number": "0606060606",
"first_name": "nom",
"last_name": "prénom",
"credits_mode": "self",
"appId": "ASDQDSDFTTYYH54886226",
"apikey": "Xfd545754F"
}