{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "148339",
    "entityType": "User",
    "nonce": "0xd6a254f3373cf00e8fdd989a9a652cd314b4bc028ca66cffa33de10408f5bc37",
    "signature": "0x442df4e2c47c786e227a3ee7f59f99d2e8ceef6fa1c06f2e1b9cc707f352986e4a64e1276030a3c9e1671410e6413b049ea117e4b118878ce783b54855f044fe1c",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}