Extrinsic 55883-1

{
  "heartbeat": {
    "blockNumber": 55881,
    "sessionIndex": 931,
    "validatorsLen": 1,
    "authorityIndex": 0
  },
  "signature": "0xf0e52b5d9a2d5e2f6fffc7ce5dd497ef7594bfc90d6ba03ffd25ab24a7cac22148c5f4cf0629793fafab0aec5382b1378cacac47760fcf7c6aaa6ad346120588"
}