Extrinsic 142875-1

{
  "heartbeat": {
    "blockNumber": 142874,
    "sessionIndex": 2381,
    "validatorsLen": 4,
    "authorityIndex": 1
  },
  "signature": "0x2208e1a295d458bef73c90eb987e7d318d3be0e0de008acfdf3db08a84072f4593aadbf5e3a69b7bf597a322349e4222b8dacbbf99d5c9b20803b42ccb6af087"
}