{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "163399",
    "entityType": "User",
    "nonce": "0xe70eb9e6d9eb171cd0c4da11ec3f62d8a98bb4b9942312b1bd27654a708f88b7",
    "signature": "0xab67eaa8eeb6439aed9cd951b903abb26943c7e94f9090c50a5eb45ac64695710dea280a1d66d80c0aaca7874f5f14c53e0094fde681e1f1c2e757d1cf1a4c061c",
    "signer": "0x766Ba5816f1Cbcd9649d3b301b8F423CFF252fdb",
    "userId": "758745"
  }
}