{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x68c751066b1005d74e95f0e5a6c48999892fc78af03b812e7e773680a4a94d17",
    "signature": "0xcb308c6e6ff9018fd6959756d8dfb1e88480564793de4d32b73eda0e8f05e69366b006e9ce3475859343d969c2802240b428225ffb2ad6b2ad3f18172ee0e24f1c",
    "signer": "0xD8Af7F25Fd96Ea8cbBD6f20Dc8595f0c98A3DaAD",
    "userId": "513913828"
  }
}