Extrinsic 59493-1

{
  "heartbeat": {
    "blockNumber": 59492,
    "sessionIndex": 991,
    "validatorsLen": 1,
    "authorityIndex": 0
  },
  "signature": "0xc090a7e0f3bedeb381834983e74708eebb6df65e3d7ea9adbd9406983f035860e15f9fbcaaed130f17fb22fe45580f5e6dc69c6a26f965a6304d6b7d01916c85"
}