{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "297607",
    "entityType": "User",
    "nonce": "0xed58298ff5e637316726351a9cc8017df161ad3e1f0143d55257f9d40c83e3be",
    "signature": "0x3098be0aee7bccca73e9eaf3fffd0bd6c4e180a96228c666734dfe7d0006c0877e2b4e6decb99c7821847930abffb3df5c2b3777add4cb64a4db7fb61b26fc861b",
    "signer": "0xD24271e3B8CCFB603860EA392E94eD5AE2538703",
    "userId": "456716469"
  }
}