{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "396905",
    "entityType": "User",
    "nonce": "0x272ef1cd66f88ce8ca53ba428b11d128bbea5e637acc5cb5b0f39adaa7c1a1ba",
    "signature": "0x15f0a3e739d5e7b39e85bd20ce73c9972557209dee28a4390642844a5b56abe56555e054447730ac41a195b5fedbe8b2b26bd6f1cffca21e01d24f5456dbb3421c",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}