Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAADuAEAAAAHDQFefDGpdhSBfgVyX2TDnUJAQ2pm4xy+lzGPYRvMV+p4EAqaTY5G/6GTOBv/… (1,748 chars)"
  }
}