Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAADuAEAAAAHDQBA631t4kv5rEdsHs9g+tQCKoe5GKpizE0ezq2d0X2xpl2Uu8w/tNXzW4I/… (1,748 chars)"
  }
}