Extrinsic 73243-1

{
  "heartbeat": {
    "blockNumber": 73242,
    "sessionIndex": 1220,
    "validatorsLen": 1,
    "authorityIndex": 0
  },
  "signature": "0x2e3f46c95e08d8137450098ea8d41c196b172c08b571b04863d614dc9e03a90c88c5fad27fa5d01963d05cb3a125683d88d1218d1017ce8addae7851c9ebe983"
}