Extrinsic 45853-1

{
  "heartbeat": {
    "blockNumber": 45852,
    "sessionIndex": 764,
    "validatorsLen": 1,
    "authorityIndex": 0
  },
  "signature": "0xc4791d720f2a5b793115f0008a353422a7f54d00ad52dc2632861a381f3951248501a0c6192b20e65f73d35fdaf8f3580cfc2e79b2b9b4542d0e7c4bdfcc6884"
}