Extrinsic 144342-2

{
  "heartbeat": {
    "blockNumber": 144341,
    "sessionIndex": 2405,
    "validatorsLen": 4,
    "authorityIndex": 3
  },
  "signature": "0xd41e121607a5785957fc40b1dcb329c8a4b385b8eced2e100d2ac5efb886f612a72e5f495c15ba09b84b80498d734984b7f720c716f9a3bf223ea0e457ac5789"
}