{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "41804",
    "entityType": "User",
    "nonce": "0xd08800d7ceaacce69b9f8d257f7d3f63ca0c864ebf372be76d7ccf4e1f2b0fa1",
    "signature": "0x50dfa7689abcb511752b0f6af28966c1476e5d2f43375a06a2fd1ccbf8cf0e5116c6af10ad70e2a812f893d15af8d1e59820ea2f5a5525dff5fcd1d94604fd441c",
    "signer": "0xbF4F1f4df4779768AfE75515b1552a2Bc5b4Dd32",
    "userId": "100976759"
  }
}