{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "43430",
    "entityType": "User",
    "nonce": "0xd5573f0bf714d68042a8852844038855719d126a0588c2fdc806efa3cfb79c11",
    "signature": "0x13f2ff17d590c101b6396bf5e9ef448b50c964be17a4ad2956016c9dfe31747e16f99b65531c487bb08cd916e58c8c394c7ced69d1c15bc2f7c323f87bc3f1791b",
    "signer": "0x548E1c3e772F1853e347739D56c373D3E0E4A50d",
    "userId": "508662104"
  }
}