{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xe7fd94fbc83c9743a1849043d2bf200afa912a84cff8a55d2f883c176661c0b9",
    "signature": "0x3bac9439c7fb575c0a05734511f1d0fa05b0325f8da69b374d181f89f5ad18d70cb47facc91c733294044e61f8143327c9045dee5262a3ba55704b7c8ed134dd1b",
    "signer": "0x96631AE8EE332f8b0A00D0Ff2BCFBEb0092b5dfb",
    "userId": "256491722"
  }
}