Extrinsic 20892-1

{
  "heartbeat": {
    "blockNumber": 20890,
    "sessionIndex": 348,
    "validatorsLen": 4,
    "authorityIndex": 1
  },
  "signature": "0xc0232b0653c3e55fe398e90c2ba11aa102a02bd2b68da288ec7cff96ef59b441cbdaa14793e4c6dfbe0cfd2d53fb4b1165bd4126a7f0ebdeca456c8c65ba1482"
}