Extrinsic 74229-1

{
  "heartbeat": {
    "blockNumber": 74228,
    "sessionIndex": 1237,
    "validatorsLen": 1,
    "authorityIndex": 0
  },
  "signature": "0x548bcb6d12294f9984a945a2b822500511ea2c177ecf561a8350eb913062d459e5eeb495024d72d252a16105320ad01dbf1402f41b3662d6625497fcb12ec287"
}