Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwHJnScNcDNQdTxQPlHriEs6nDSEYOXVGRs/3q3HCZ/a2yrC8gAX63Gra2z9… (844 chars)"
  }
}