Extrinsic 45496-1

{
  "heartbeat": {
    "blockNumber": 45494,
    "sessionIndex": 758,
    "validatorsLen": 4,
    "authorityIndex": 1
  },
  "signature": "0xee63b430506d2b322893c6ee3219044a910df7d110536339b7916048aa58e00f3aed7635a68920d1a906786e12b4cd9ecf69644e32ce779f43bff4139d26e983"
}