Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwEA0cuOWWMoOw/Ld5E/DtKZXDJDqzqB013Htyi9ao/AyD7RbHJOAj4B3qNv… (844 chars)"
  }
}