Extrinsic 28294-1

{
  "heartbeat": {
    "blockNumber": 28293,
    "sessionIndex": 471,
    "validatorsLen": 4,
    "authorityIndex": 1
  },
  "signature": "0x0e7aed4d3fa6f3daf2e8a60c455716af321287e4939e8dcaed4ce7ac52def44c5075f70063516434399a294a3af6147ae6c078ab8ff49a6f326a2a0e00368d86"
}