Extrinsic 7453-1

{
  "heartbeat": {
    "blockNumber": 7452,
    "sessionIndex": 124,
    "validatorsLen": 1,
    "authorityIndex": 0
  },
  "signature": "0x745e7098d8e79e40e2f7415e1bc0abaf1799d15c98eadbd3647bf6f73c93f51dd2e4e6ab93356b84d476815185b239ed0cb1ba4469b113436d39d63cee490887"
}