Extrinsic 44967-2

{
  "heartbeat": {
    "blockNumber": 44965,
    "sessionIndex": 749,
    "validatorsLen": 4,
    "authorityIndex": 2
  },
  "signature": "0xbc6e4d1baa4ef2b601bbf84c9aeeb6872fcd37f7ec46dd6f1f3114d33ecd732cf2a627a41adfc2620a4e026ba7a9eee59a9347f6663b3dea4ae24b23aa879a88"
}