Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwEL2e7W8xw4MxEBpJg18VC551F1I8Eu1YFEBy/5pIjzaluNtVGXbF7WJ6Px… (844 chars)"
  }
}