Extrinsic 42109-1

{
  "heartbeat": {
    "blockNumber": 42107,
    "sessionIndex": 701,
    "validatorsLen": 4,
    "authorityIndex": 3
  },
  "signature": "0xd20aa440626fa62afc40bb36e229e60084452c594575ab7a4d758876401e804acceb14266e8de00ad2754ce169f26ae19a1fdedbcd069a2ebe9bc51dadeabc87"
}