Extrinsic 109004-1

{
  "heartbeat": {
    "blockNumber": 109003,
    "sessionIndex": 1816,
    "validatorsLen": 4,
    "authorityIndex": 3
  },
  "signature": "0x08bc712f21c71ba10ec0c11b43855fcecd1313c9bdefffb59e00b5ac5c5bb0243874fc1ecdcb490836857897534da12f4facefa0f623075bfb8653d37dcf4a80"
}