{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51978829",
    "entityType": "User",
    "nonce": "0x28a6481b08ba66413cb3f3e8bce694e11c358fec17728b662c79488696f448f1",
    "signature": "0x0af66674c8caefeb4e0a7b4ef560674b62ae3d6126e9e87c8e5cb339f9d8c9ed16d6c549c95ad38845fdf70d3b36a5eaf4a1f427936f6d0bddf86becc4b3a1c91b",
    "signer": "0x6AAB6EaEa3f7F15750b649C269b0391dcB19dEeb",
    "userId": "92019297"
  }
}