Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwBX0wQ9NEVNEARb3EdGTLWB5QjWwxKhy/PPTW/VEkKY2lLw1N3Ror3BWgR6… (844 chars)"
  }
}