Extrinsic 2476-1

{
  "heartbeat": {
    "blockNumber": 2475,
    "sessionIndex": 41,
    "validatorsLen": 4,
    "authorityIndex": 2
  },
  "signature": "0x0ecaf5616caf0387b4a3a9561a80c0c0a0d3b0ab274360ff0beeb485d02cc46c46c3e4d280205c48ca05da87bb76e221bff2e2331e56d3bb1dbee948ed37098c"
}