Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwA5iJ2OYKDeeAm/IyvW8rls3R1Azn0Fqm2j2cRCPftfMl2C5+tB8DGsJpCI… (844 chars)"
  }
}