Extrinsic 20076-1

{
  "heartbeat": {
    "blockNumber": 20075,
    "sessionIndex": 334,
    "validatorsLen": 4,
    "authorityIndex": 2
  },
  "signature": "0x32741fe1662f46cdddd38c94473262af93b98b79e3892b7a45e1b8d209c5721d1bc626243b083c52d42307ca34ea2efd551f99d397e637d1be40046a8200dc81"
}