Extrinsic 138263-1

{
  "heartbeat": {
    "blockNumber": 138262,
    "sessionIndex": 2304,
    "validatorsLen": 1,
    "authorityIndex": 0
  },
  "signature": "0x5224e32e9a90973114003b0897a1b7ae688e2efc201f3bfb4e57ccc816e6e261b8f64d2edfaaf0b6934649baaeebc822474f26f1c1bdaacd8012064fc2f4008a"
}