curl --request POST \
  --url https://api.member.dev/api/v1/auth/register \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/vnd.api+json' \
  --data '
{
  "email": "jsmith@example.com",
  "password": "<string>",
  "first_name": "<string>",
  "last_name": "<string>"
}
'

{
  "access_token": "<string>",
  "expires_in": 123,
  "refresh_token": "<string>",
  "token_type": "Bearer"
}