{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x758b60e6908511e2e5762064ee3c16d955ccc6f0158c033bbe7669767b3af7c3",
    "signature": "0x6c794741ab06e0a1021061e631b043c80c7680493901d67f1e390f5854f2b6c848edf7f31b3428c4c47c0e859f760ba65b2238f45fef3a2565966087a61f35151c",
    "signer": "0xbF4F1f4df4779768AfE75515b1552a2Bc5b4Dd32",
    "userId": "100976759"
  }
}