{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "45518",
    "entityType": "User",
    "nonce": "0x2d40ca7c747be756186ff20df73947da3526881c7dd4cb4c6e3060007f0008fa",
    "signature": "0xb7ff458292de0690844148243742706380816520711d0823a0c6ecf5dded54311c77e4481888e50b52432e450d32b91391acc0f771f062dff361a8edb1867c131c",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}