Extrinsic 44967-1

{
  "heartbeat": {
    "blockNumber": 44965,
    "sessionIndex": 749,
    "validatorsLen": 4,
    "authorityIndex": 1
  },
  "signature": "0xdc137d40b8073993fa7c2551349a65e223d31820f75dba3c830b2525bf82735bfd31cff6bf1de891b261aa1abfb79636305bfacb650c59237054d8e26e68e685"
}