Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwAaz7F/j4mBNW8ZQ4QZHR9q5drz59aNZ5Qh7J3aHkEbnQA84ivWLCrHYzHN… (844 chars)"
  }
}