curl -X POST https://api.example.com/api/v1/customers/ \
-H "Content-Type: application/json" \
-d '{
"email": "[email protected]",
"first_name": "John",
"last_name": "Doe",
"password": "SecureP@ssw0rd123",
"password2": "SecureP@ssw0rd123",
"date_of_birth": "1990-01-15"
}'