Extrinsic 2267-1

{
  "heartbeat": {
    "blockNumber": 2265,
    "sessionIndex": 37,
    "validatorsLen": 4,
    "authorityIndex": 1
  },
  "signature": "0x1c0e6af1e441ce57312f1983c655767b7945361f62fc3e8a15084a5b16248c3bebe31614d45b69bdca42d803e9e728bd5b49a011ba50eacf77d32fc5f809a785"
}