Extrinsic 49521-2

{
  "heartbeat": {
    "blockNumber": 49520,
    "sessionIndex": 825,
    "validatorsLen": 4,
    "authorityIndex": 0
  },
  "signature": "0xe488c939a5f363554d520ba48c2e711f226855da93c61ad66444254dc4c74c4aeeaab0ca680fc84926182c857b40b2ef5dbcc1b1a7efe44cc81c397d09dc2581"
}