Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwFWqtYYdJ9xzSa1wY8yIh9RDRQi3F3Syt3HiAVpAlEeNX/j0vw0gA/1siS9… (844 chars)"
  }
}