Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwDy7cz5bbImV0fKi8ofvA5M+Pmrg0ctelOGPvQlQBhG/BF+tOHw1/lAW7Qm… (844 chars)"
  }
}