Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwC/x8cjtAuTXDCHtc9x8GliCLRPgwyK0oGZXd7ZA+5LQHYjlV9Ehc/3PhhX… (844 chars)"
  }
}