Extrinsic 2735-1

{
  "heartbeat": {
    "blockNumber": 2734,
    "sessionIndex": 45,
    "validatorsLen": 4,
    "authorityIndex": 1
  },
  "signature": "0x382ba2ce3587584f7a09e4e8d81e30c5d875b472fb660331194abc3da8e8d16449f1873ff6ec35388eeff9385bc6c09645dfd503f246a92e91ced2db9984858e"
}