Extrinsic 57986-1

{
  "heartbeat": {
    "blockNumber": 57985,
    "sessionIndex": 966,
    "validatorsLen": 1,
    "authorityIndex": 0
  },
  "signature": "0xfa536cab20ba8254ed1d309df0dc2efac3cba52985c6a699cdecab164920c651afd0290d04beb662775b6172f099b70316b0472b239356686442aed11aee8d87"
}