Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwGhV/rA2Tu+8KbgCPK/8WlVuMy/sLYttPzHh3oOcA96dyfFyMZIWf6cK+Y7… (844 chars)"
  }
}