Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwGP4iQxFdgAKE9fjW7bdkYr4C/megYnBN6j+x6vqXcQIXCgv4GZQR6zsiVA… (844 chars)"
  }
}