Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwEHK+FVyme5WkKx3lx6upl3vaZ20yAGMg6aXu2/Ust6WTmAuHI3o8LiXHWI… (844 chars)"
  }
}