Extrinsic 12283-1

{
  "heartbeat": {
    "blockNumber": 12282,
    "sessionIndex": 204,
    "validatorsLen": 1,
    "authorityIndex": 0
  },
  "signature": "0x8ad41dfc504f876b9f1aaf8e8c73d3143803774b2dea0763c879863d985b3b558f888494fa943391279031f1d28ac7648b3e9004d5097c424c55cb6c90819182"
}