Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwHhLCsk/wDneHl6NZdiQWJrPbA8u6C7qLP9/mFO+aKRrGGE4AzU1BQz7e3y… (844 chars)"
  }
}