Extrinsic 2438-1

{
  "heartbeat": {
    "blockNumber": 2437,
    "sessionIndex": 40,
    "validatorsLen": 1,
    "authorityIndex": 0
  },
  "signature": "0xe269d5761fda5f8bda1b4ec555b48c57aeb3ac6808a6efa876a0da7a27c3301317170a1f973f30abc0010e328f3add9e3a40c6c80d9879ec21a94c5049e5a48b"
}