Extrinsic 10473-1

{
  "heartbeat": {
    "blockNumber": 10472,
    "sessionIndex": 174,
    "validatorsLen": 4,
    "authorityIndex": 0
  },
  "signature": "0x4874e67717e7471294a26e1231fe6fb70a365541c00103372a1e1aebe2e4663d30203d19fe534b1642abadbd4270c0fb789329604e1a18ba5c5f70a4f1d06f81"
}