Extrinsic 2472-1

{
  "heartbeat": {
    "blockNumber": 2470,
    "sessionIndex": 41,
    "validatorsLen": 4,
    "authorityIndex": 1
  },
  "signature": "0xca6a7be7f145a0bea4f13b7b132673764e0cba5b362b241f9ba8488dd65943389d9dc8ee4ffaa6cd10f5defffdbe13570b49b21befb695b93fa80511dac8f880"
}