Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwHUkPDFBu1ybwlohz2v375ZPmxFyk3ba9GdCTh97H0WZ3HNzh4tZ5Iqp3H3… (844 chars)"
  }
}