Extrinsic 41185-1

{
  "heartbeat": {
    "blockNumber": 41183,
    "sessionIndex": 686,
    "validatorsLen": 4,
    "authorityIndex": 3
  },
  "signature": "0x38a1b3eb8aec4beb4f5721435eb0c82004fb450b2517fb21ae10cdebb8929d18a45ee6984afdbf53f63d06fef2432e00bf498b0f39fd8b9d537d0e1422fe9785"
}