{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "715633189",
    "entityType": "User",
    "nonce": "0xf280e2ecdd181fb0821783c6af77398aabdec8558fb70d82a232c4113536a5a8",
    "signature": "0xe448d0734757d7ad81889cb6ba14adf61744cb37b9682469243ec4c8379885435971edd755762bb511a59c119b3388ffe351a4aee3e3030bcb88687e906d28001b",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}