Extrinsic 51826-1

{
  "heartbeat": {
    "blockNumber": 51825,
    "sessionIndex": 863,
    "validatorsLen": 1,
    "authorityIndex": 0
  },
  "signature": "0xa20cb8f1e06b119d8984c906e8dc2258eb2d647f1a380e70d88fb42e8948b62814cf1353d802931f0f54157ac1aecedb0a441aa3c2b2c202c43c4d7584c9778c"
}