Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwB3wbcTF6Vd5S9YdS/gIFGdgY0Borsncd5QALyJUTN43kIrxNS4XJIfJJ1U… (844 chars)"
  }
}