Extrinsic 61542-1

{
  "heartbeat": {
    "blockNumber": 61540,
    "sessionIndex": 1025,
    "validatorsLen": 1,
    "authorityIndex": 0
  },
  "signature": "0x924780850efa36a59e7901e57980ea134fbe7abc43eafd3beb66cf10e576b65dabbb6e65e3d27c353c1fe73b0ce707e742d39ff55be81c8a241dd456e2c6cd8d"
}