Extrinsic 403482-1

{
  "heartbeat": {
    "blockNumber": 403481,
    "sessionIndex": 6724,
    "validatorsLen": 1,
    "authorityIndex": 0
  },
  "signature": "0xb0eff3a8992a765107f00bd7c3e4a28aab08b947ff4c47fc116c656c09db2149eff4acfb342a789676f4d934f5ee2aed16f284903d051444f405626daf5a7782"
}