Extrinsic 40536-2

{
  "heartbeat": {
    "blockNumber": 40535,
    "sessionIndex": 675,
    "validatorsLen": 4,
    "authorityIndex": 1
  },
  "signature": "0x969b1acd98b42fdc1d3a6db1598b2e11db10a2756ed0a49a077e757cc5791a319fc2f06e3efbe0adaccba3ff142f79623402cd01fb58b9e06ba4b7ae69239386"
}