{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x791f967f4f61f6b2b8ad4bb27338f945e6d80cb185d624a6e32119ca9f4a5bf6",
    "signature": "0x666225daa5a61eafe5a84efea3f1691904ebbaede34884d5501df2a6044796f929e6f7da8bff6f7ed1f7a72844e0b38f4e76553bde42e9023a8e774df9647f5f1b",
    "signer": "0x5a7047885aE5F4E5bE90E28D8FE11438354213ca",
    "userId": "936346904"
  }
}