Extrinsic 44896-1

{
  "heartbeat": {
    "blockNumber": 44894,
    "sessionIndex": 748,
    "validatorsLen": 4,
    "authorityIndex": 1
  },
  "signature": "0xfc6a45a0a5e2946b344268f1a358400d183d33ec1b6831321f5eefb57d945746ae2d224af9cb70a9b94b2c418ab27cc052601afaedfd23fcf545fe9c95fd7f8e"
}