Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwF6Hl5pmSGcEsIdf66sfOM/Kp6qfQAp/IK7qm6q8b8kjBbGtX4Cn0lp+X5i… (844 chars)"
  }
}