Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwH+NL25W5VEkrj+NJKlI1s0zMU0NY8NLlHF0C5OsEw1W3LB6/kdYOgnbEeA… (844 chars)"
  }
}