Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwFbDGjptUl3nrZkJ5hI6i2TUbBGlxBJ9b7tWpwUlhR0Dlmb7XRNtm5C9iD/… (844 chars)"
  }
}