Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwHS9rAy9FbPCHjQyx1TK5/h4mQ0b1B0QcfKrlNT9cLJkhDHJHg7cNj1v2lT… (844 chars)"
  }
}