Extrinsic 150345-1

{
  "heartbeat": {
    "blockNumber": 150344,
    "sessionIndex": 2505,
    "validatorsLen": 1,
    "authorityIndex": 0
  },
  "signature": "0xe43de2f62b28ee8418f333c108d682a35541d6cd6d0e53fee62c6459baaa5f4088e4fb86b075890db633897b5562fa2ebc04ad948a210f36f3a65afd616f6184"
}