Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwBuW0Zf42G0nE2pdYPPBAqh0SIMUw4Z4yzTpYh4O9s0jBxN+3T0LPw7/558… (844 chars)"
  }
}