Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwB5Su7+dYzcpZcDgYRcpCbU1TjB1YB+MRORiQtvr8SkvHULd8Agz4EuB/T0… (844 chars)"
  }
}