Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwHiOgHUOQN+X+rDSbX2p2z1Xxl8ZMc7g1kiPnaZlc+QZhuK1ZDbumc2D+F/… (844 chars)"
  }
}