Extrinsic 40663-1

{
  "heartbeat": {
    "blockNumber": 40661,
    "sessionIndex": 677,
    "validatorsLen": 4,
    "authorityIndex": 2
  },
  "signature": "0x2c5e181579f2260180bdeb20bcec7f111cd2c98dc88cc82ab89a56358ecb1c67c0ba612c97a23dab07581a9f17d319616048cf9ffe78f7ccbb11eeaed2a92986"
}