{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "889450527",
    "entityType": "User",
    "nonce": "0x69c7fd91b7677e2bc9e1d5213fc975c67749cb06c1680ea32b9f623f20590c19",
    "signature": "0x2c9c2898387134432e11fe3cdf4e2f7aa048fcefb1ba52c83e7f79b872fe7807656161fbe2174b4d7f702ce4dfe60f14280fff9b27a782130991e54dfda1d0971c",
    "signer": "0xa1F606584fdE30bB7d4BE2EbeC98A5F95E4559f4",
    "userId": "786922215"
  }
}