Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwGuZW3Dc/stW7wEc/vnf2ZW2o7ZaRJrVy9FtBn8MnD+R2pX4xPJeKOfZbMg… (844 chars)"
  }
}