Extrinsic 99753-1

{
  "heartbeat": {
    "blockNumber": 99751,
    "sessionIndex": 1662,
    "validatorsLen": 4,
    "authorityIndex": 0
  },
  "signature": "0x22e988b8841a38972d1ff4017981c57d1921b54841528b17e6849c26a989113afcd8e465fdbf0cad9eee2aca304542b98cc9cfacb806a968000a744ca1b79783"
}