{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "452386063",
    "entityType": "User",
    "nonce": "0x85814d0058d8afd4833fd014a6a4cf8851372c75ff44fa56e59c2b6b6efa1560",
    "signature": "0x77f6e3e80ec8973e1aee8fc43866dd9c51c56cbc56cc70d93e6ae89f2669a2377ba7d12279942f4362e48f2de5d9eafad0f82544b2cc076e230fd196c4b5c2511b",
    "signer": "0xD24271e3B8CCFB603860EA392E94eD5AE2538703",
    "userId": "456716469"
  }
}