curl --request POST \
  --url http://localhost:8080/cabinet/auth/email/change \
  --header 'Content-Type: application/json' \
  --data '
{
  "new_email": "jsmith@example.com"
}
'

{
  "message": "<string>",
  "new_email": "<string>",
  "expires_in_minutes": 123
}