Extrinsic 3529-1

{
  "heartbeat": {
    "blockNumber": 3527,
    "sessionIndex": 58,
    "validatorsLen": 4,
    "authorityIndex": 1
  },
  "signature": "0x50f35b645e511a24f12d2d6a009e37d11e5b2d9e6e2eaec18847c82d0eac4b40e5febdb81c897e3a5335fc49166d3e72c72e35840c0c87ad42e4bc57deb7938f"
}