Extrinsic 74985-1

{
  "heartbeat": {
    "blockNumber": 74984,
    "sessionIndex": 1249,
    "validatorsLen": 1,
    "authorityIndex": 0
  },
  "signature": "0xd0c23d57b174807bc96af43e7b8d9830f04c60e051bbcdb9e27ac447c93d1b12fcf19df46864ee0217383ddd94a213e95b9c13c832880dfcbab30a66746fa489"
}