Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwFXgW3P9/1LQQ2YfQKaoY5/fO6ENZhOFrw0IazIuJhfQ2Ye4Oz+6M6FvyTG… (844 chars)"
  }
}