Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwD29LrCXF2Rqno/r5SD1f+Ubce8Zph54R6Xz8q8hQM7nVevbSvgqTv+BvF/… (844 chars)"
  }
}