Extrinsic 22608-1

{
  "heartbeat": {
    "blockNumber": 22606,
    "sessionIndex": 376,
    "validatorsLen": 4,
    "authorityIndex": 3
  },
  "signature": "0x8a38c5b4cdebeffc5c2c9ea34d4f9438aa78c501036539edfc0d38637b34c76d53922f471c2c9effd655c1150ebcdb677a3c229bbdfbd31b79d448fb29ef068c"
}