Extrinsic 74682-1

{
  "heartbeat": {
    "blockNumber": 74681,
    "sessionIndex": 1244,
    "validatorsLen": 1,
    "authorityIndex": 0
  },
  "signature": "0x6e0a2c262f43eaf216eb6671a31eee8472dd568c27f00f6468e9f819aaf67d39463c9d4c744a0b08b2e9ea2d7e4bc843395a5ebad467dbaab5bde10b52ae0a85"
}