Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwD5sa9hDBOokU9/CSdqIDl7GIBMoEO/YVMCsRNT1Uku+2F4jX8K/IA0zJ1H… (844 chars)"
  }
}