Extrinsic 143508-1

{
  "heartbeat": {
    "blockNumber": 143507,
    "sessionIndex": 2391,
    "validatorsLen": 4,
    "authorityIndex": 3
  },
  "signature": "0x4e0581fd3eb4960beb0192f2627129a6fd15097b5ddcb930bb8e6c5d6c15ae56b3f481850fc74d70fd7f93764ebed56a5643c44b3afbdaa665696d4e5ed4af8e"
}