Extrinsic 45262-1

{
  "heartbeat": {
    "blockNumber": 45261,
    "sessionIndex": 754,
    "validatorsLen": 1,
    "authorityIndex": 0
  },
  "signature": "0x1cecb838dee10afe76c6a8d2737bc261daf4b15367ddb813d57e1b9770735b33c6e796431e8082e9b52627d135eae2ebd983f7ed133d8e446de284cbeadfae8c"
}