Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAADuAEAAAAHDQCoSA+9MmIpGKZ5k8+TBUstPbeuAt0Ui/FW6s2FO5xkRzfwco9HFur8Wcig… (1,748 chars)"
  }
}