{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1473388",
    "entityType": "User",
    "nonce": "0x07e7cef2cbcde0a9302a30b022ac77783d473327091d859814ad3970d263fd12",
    "signature": "0x91e3810a6f1a3fb93f28d3ad0fcaa1e441418e913087f40066dec2d513065fa565b9502b4214c33cec083a97ec81561e111a6cdc1aeb31488b0bd0f4b104c0b21c",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}