Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwHF9/Mii979qjxtPKeYGMc5P2fGF7sW9JA9QNON4fhKFgrE3M66Hs1wF5E9… (844 chars)"
  }
}