{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "314581",
    "entityType": "User",
    "nonce": "0xa18cb53034271b23f33accbd1847805e32ebeb76d6a38aa5e48b303864199109",
    "signature": "0xe6249184874a7f4f8915a42373c3b849427e6476681c1fc766156663871cdd8c7cee80232efe6dcc0108f81b98525462416e7bd824587514f6383c96b64b2d061c",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}