curl --request POST \
  --url https://api.example.com/api/storefront/customer/register \
  --header 'Content-Type: application/json' \
  --header 'X-Site-ID: <x-site-id>' \
  --data '
{
  "email": "jsmith@example.com",
  "password": "<string>",
  "first_name": "<string>",
  "last_name": "<string>",
  "phone": "<string>",
  "marketing_opt_in": false
}
'

{
  "customer": {
    "id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
    "email": "jsmith@example.com",
    "first_name": "<string>",
    "last_name": "<string>",
    "phone": "<string>",
    "marketing_opt_in": true,
    "email_verified_at": "2023-11-07T05:31:56Z",
    "created_at": "2023-11-07T05:31:56Z"
  },
  "access_token": "<string>",
  "expires_at": "2023-11-07T05:31:56Z"
}