Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwG+EFx15oQsiD/LEEAOQRhOuU7yjaHy2+Dq+oZnqW3iNEQl/qF0KJhs1kF4… (844 chars)"
  }
}