{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "8361",
    "entityType": "User",
    "nonce": "0x2fc1aa5c42815693800e58ed446aefcffe4c23315864b59262417d97a06306c1",
    "signature": "0xcaf472934c244466bdf315b4934ecaaf0515ba4af72c62fa25c947cd95e317065500fed54e42c3c3666aba7d4247a5e1eb02a5223ef72abf8099f44df8dee3511c",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}