Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwE+txrAfXE+R9n3Ns/fY6P8Og7bSs93JW++7hEe2EVVeHjBBkvPjqeKX6Cz… (844 chars)"
  }
}