Extrinsic 75190-1

{
  "heartbeat": {
    "blockNumber": 75189,
    "sessionIndex": 1253,
    "validatorsLen": 1,
    "authorityIndex": 0
  },
  "signature": "0xd271100d268f272fe949f2b22eb4f5b59eb9856b7eb44bc7e22f889893d6330988ed3f6d79fdc13cc6367eaaf1d2d7f405a1d6651875ed99b479af4d0892c48f"
}