{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "8842",
    "entityType": "User",
    "nonce": "0x88f63449f31da80c107e1458b90564e1f0465e9130185833c149654d7d845d1d",
    "signature": "0x76668323768cf270cb9d2768a1144b4d1ae99cf27d4678fcfa9c16a9c49ab55a573d42fe8aae5b1df9af828cfd18472e1ac23cf108355411b70350b5574108131c",
    "signer": "0xD24271e3B8CCFB603860EA392E94eD5AE2538703",
    "userId": "456716469"
  }
}