Extrinsic 31522-1

{
  "heartbeat": {
    "blockNumber": 31521,
    "sessionIndex": 525,
    "validatorsLen": 4,
    "authorityIndex": 1
  },
  "signature": "0x2ea8979376c5eda70f931842653b8e9dbd8d4b300418085e5c8cb8189a784e751221cfff39ab41ea29b3c824eb08ac901bea2e923574191c451b4407db05d38c"
}