Extrinsic 7486-1

{
  "heartbeat": {
    "blockNumber": 7484,
    "sessionIndex": 124,
    "validatorsLen": 4,
    "authorityIndex": 1
  },
  "signature": "0xa41be35759ae56aa4a4d3a26a64ffb1983cfd2fc3c14139c6fbe67e7005c7224678b08c1ce1d1f0d489ca65c7397933aca07017fbe0f89a27662b17a3f727982"
}