Extrinsic 22469-1

{
  "heartbeat": {
    "blockNumber": 22468,
    "sessionIndex": 374,
    "validatorsLen": 4,
    "authorityIndex": 2
  },
  "signature": "0x24745e00c7d65627e6ce4d2347bede6c89974f63276d2f307013864e162f843a3d85d30f988880cb434a0291e80c70c0f3c23109bf1b2689b0ce44dddb36d189"
}