Extrinsic 151456-1

{
  "heartbeat": {
    "blockNumber": 151455,
    "sessionIndex": 2524,
    "validatorsLen": 1,
    "authorityIndex": 0
  },
  "signature": "0x8ccb32ebf478d3f5637834acdc083c04820d57391a30ca549b554d48ea9dc77a664fe459ca7794a05b5fb170cce31027c8d60bad5a70c01b341818201f391c8c"
}