{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "327716",
    "entityType": "User",
    "nonce": "0x38f5e3d62c6387c28572918acc55fa578814c6452ff081576aa3f4a8a8b9cc3f",
    "signature": "0xfdffcce0a05315996554549023a51dfd4d56d8d3f1b83b97dc6d92a64743bc9d20e3f54a05dc65e7cd3d5ccfeb53e83e0f5b5d458d86f6690723f92c274ec5b91b",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}