Extrinsic 22660-1

{
  "heartbeat": {
    "blockNumber": 22659,
    "sessionIndex": 377,
    "validatorsLen": 4,
    "authorityIndex": 3
  },
  "signature": "0xcab372ddc118a114c8e40602803eed516cf330ae6acdfa0b57e511283d5c3173683fcbddf0fa9b793fa544bb468405fbb74af991dc839aea9b498d82c0229386"
}