{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "979988194",
    "entityType": "User",
    "nonce": "0x4da7c7b88142dd3c2e6ca91d57668048597c53e8ceb93b74a3906afcd1eca787",
    "signature": "0xb2d90d410dcbb272cff4bc8ed03af0075e1048c16b4459b6a955ef8829b7f0bd011447dcd06cab9c434faf1d01a341f15d3a6b29506d72e968612aa8ca881a5e1c",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}