Extrinsic 41187-1

{
  "heartbeat": {
    "blockNumber": 41186,
    "sessionIndex": 686,
    "validatorsLen": 4,
    "authorityIndex": 2
  },
  "signature": "0x84131ddc7a7e479c7a30a0face37232031cc4bfcad0ff6709f63040431792c6620eeffb0d6179599550c47fadf730bd541f9089977dfee068177391415e7308d"
}