Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwDpkdlY5r+dVjExJjaFbY2vdFADZ/GrB7W6qtc/e+ex9CBuOIxE8xQDtCWJ… (844 chars)"
  }
}