Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwDF2PQ5FNpRKtsEq8u6fgtH6T4IxZsuAiy3DDWZX1Xf6lY/oiz6Uxb5pbFj… (844 chars)"
  }
}