Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwEWi4mIzroc+XhOQQOBs4P/Wxx+NiuF2h0v5l75BfnNVFr4NaVMa4y0prCA… (844 chars)"
  }
}