{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x03163c843276dddf8a6ae4ae159faa9433ca92e8b9b8567c5819ae3ea01f98e7",
    "signature": "0xde7ed1b29abd9db9687fc6dc4f166dad77b60ff3dc10f72df02f00c38afbc4db5d4b96e4b5e76fa47e160f8d8551744b8dcb669ac574d673075839f65f4dd5ee1b",
    "signer": "0x801C08D9724a6cEa5c1d2C2E30Edf6F8214662Aa",
    "userId": "840986101"
  }
}