Extrinsic 26507-1

{
  "heartbeat": {
    "blockNumber": 26506,
    "sessionIndex": 441,
    "validatorsLen": 1,
    "authorityIndex": 0
  },
  "signature": "0x6862ba5464297400f3b41a9238c3a192b55620625b41ff42392dae00939ede35719b292a525f8fb27d0051e213c742cb41482c5caa8cbdb50069083d75b34e8f"
}