Extrinsic 17196-1

{
  "heartbeat": {
    "blockNumber": 17194,
    "sessionIndex": 286,
    "validatorsLen": 4,
    "authorityIndex": 2
  },
  "signature": "0x528a5cfa38335b5884858a983155f5c8c30b53ad4e7678c934f82bc37c8ba073bf9528196c393ce580dfdc54231499c64668dc297ce0dd8835d1c21fb376b588"
}