{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "2216",
    "entityType": "User",
    "nonce": "0x830365cd1b69f64bb74a6ef91fced3b8b3bec8f32a9ed1174253a065203d9825",
    "signature": "0x65d9c310eaa065a96f857ac3603db5148550e53273a4dda90ce475839daac58f633103149483acec74418cc8a2d2ef3cf137ffa56d33564a34197366219ed7591b",
    "signer": "0xD24271e3B8CCFB603860EA392E94eD5AE2538703",
    "userId": "456716469"
  }
}