Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwDYVq5vAHnchTdec7Ew6EZZwk7SWV3LXFqmnG7eBvW+d3AGFMR1mDC4WesG… (844 chars)"
  }
}