curl https://api.usertour.io/v1/users \
-XPOST \
-H 'Authorization: Bearer ak_123456789' \
-H 'Content-Type: application/json' \
-d '{
"id": "usr_123456789",
"attributes": {
"name": "John Doe",
"email": "[email protected]",
"signed_up_at": "2024-03-20T08:30:00.000Z"
}
}'