Extrinsic 405756-1

{
  "heartbeat": {
    "blockNumber": 405755,
    "sessionIndex": 6762,
    "validatorsLen": 1,
    "authorityIndex": 0
  },
  "signature": "0xfed76db12ac710aa9a2b439bcf59fb260e0c4f37c71bdb7c1dacf087e1740477f7e3dfe5cd7c053437381dfbe3d520c76996019c9e6031eec7698ef30ad2a981"
}