Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwEBwc/sGzR78iLAkT0WkpbXhe3UY9KH8GaZ8QMM4s8BpSJMD0KWW58Urqsx… (844 chars)"
  }
}