Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwFp5u/bLO+MPG7BGKThAkZ4UQHVXfzn+2k/GqKJrFrZ4AKB1RWZM3bCQ4lW… (844 chars)"
  }
}