curl --request POST \
  --url https://api.example.com/api/auth/refresh \
  --header 'Content-Type: application/json' \
  --data '
{
  "refresh_token": "<string>"
}
'

{
  "success": true,
  "message": "<string>",
  "access_token": "<string>",
  "refresh_token": "<string>",
  "expires_in": 123,
  "refresh_expires_in": 123
}