Extrinsic 88392-1

{
  "heartbeat": {
    "blockNumber": 88390,
    "sessionIndex": 1473,
    "validatorsLen": 1,
    "authorityIndex": 0
  },
  "signature": "0x5ce7e996e69cd016f36a799674a2a3ac966e9346689c445c50274c8c80a36956f3aa2aaae6c9ea3f553930d8990404f1a150408a61c23141eb658b4fd6792181"
}