Extrinsic 31568-1

{
  "heartbeat": {
    "blockNumber": 31566,
    "sessionIndex": 526,
    "validatorsLen": 4,
    "authorityIndex": 3
  },
  "signature": "0xd8ab798d8fd2ed4fd2a0dc4bffc319b6ea76cbba8c4b283d058c8b132d345e0d25251e088b668228bbec425aa599a285bd52b69d2707abb1a4951b5d4476dd8d"
}