Extrinsic 41264-1

{
  "heartbeat": {
    "blockNumber": 41262,
    "sessionIndex": 687,
    "validatorsLen": 4,
    "authorityIndex": 1
  },
  "signature": "0x5ce641b2fd85037d3a99330aa34d9207ca831bfa717bd2d5d16b0e719be2b7133460591e39b949e4f0b1f9fb025612702b68d7789039c6c26d74b16b6ba1a684"
}