Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwHZc4RFFZEYGsU0SIh4TLmi4w4QGLkR2ITrTiNvVL1+UzGZuEJg1dps4gjx… (844 chars)"
  }
}