Extrinsic 22419-1

{
  "heartbeat": {
    "blockNumber": 22418,
    "sessionIndex": 373,
    "validatorsLen": 4,
    "authorityIndex": 2
  },
  "signature": "0xa88d35dd0ce18e7e4078ca559c41dedee99fac0c65d2b9bda5f4190f5be7c639f4642316d0d19d81f4df01a38ef15b6d60673e078ff5c70e27a8a6f9d4a93184"
}