Extrinsic 25903-1

{
  "heartbeat": {
    "blockNumber": 25902,
    "sessionIndex": 431,
    "validatorsLen": 4,
    "authorityIndex": 3
  },
  "signature": "0x246ad5d659df6174e1ba641aed7410c17d666ff6761312d7ca1cfcc2c69a675c17002cfc31753e0dec4f889bcc006ddf721ffb1ad9a2df9c705b307f009c3c8a"
}