curl --location --request PUT 'https://api.conexteo.com/models/0' \
--header 'Content-Type: application/json' \
--data-raw '{
"name": "My template",
"content": "This is my first template",
"sender": "TEST"
}'{
"id": 0,
"name": "string",
"content": "string",
"sender": "string"
}