Extrinsic 123341-1

{
  "heartbeat": {
    "blockNumber": 123340,
    "sessionIndex": 2055,
    "validatorsLen": 4,
    "authorityIndex": 2
  },
  "signature": "0x4ebaf8a6ded77acb928645d5adc2f0cd8436e4c11ae9a3ec3e2547d32d3ac350742a38f6614c713023e98469fb0cb9806fc4a5f089fa157ce040784bd150ea81"
}