{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "3427",
    "entityType": "User",
    "nonce": "0x45445d1e87840ecd021c2e137593971979b41650eddc73d97c8e60cb09b6cdac",
    "signature": "0xaea0286710673398380c70d3c8a27e7c4961cb0abd0c7c03c8104529ef4cbfc67a05a7f02fa86eee08eec4d7c9db9a5a0f41ab40d224c0c61dcd066244a71b441c",
    "signer": "0x45C682dAb9Cd8ED5e055aC2F6a860Db5F14c27C9",
    "userId": "611525840"
  }
}