Extrinsic 14724-1

{
  "heartbeat": {
    "blockNumber": 14723,
    "sessionIndex": 245,
    "validatorsLen": 4,
    "authorityIndex": 3
  },
  "signature": "0x4ee888f04168c2203ddfd90f964c060b09a352c7d89fc011eeaa0de5f846e62dc7286655ba4b8545ab8e40d428283e10fc96a61b744d019755894e9e8a473c8a"
}