Extrinsic 401791-1

{
  "heartbeat": {
    "blockNumber": 401790,
    "sessionIndex": 6696,
    "validatorsLen": 1,
    "authorityIndex": 0
  },
  "signature": "0x78c719a0a09ac26c60843bdd682a5b15ac890c5f50272e1c3f809b25e5a11d7750f9aa36fb605c2c811e443da656495763bf758f26480113229fe0d04b7e3882"
}