Extrinsic 61902-1

{
  "heartbeat": {
    "blockNumber": 61901,
    "sessionIndex": 1031,
    "validatorsLen": 4,
    "authorityIndex": 1
  },
  "signature": "0x8c8c5bb697352e03a069a7711f378f67e15cdd50d7ab0c76cb366fc9fe68ea6855a1d1a2eb7e0476c0896f5f805668b355d9ab84d6381762c72ed32c0774738c"
}