{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "299502920",
    "entityType": "User",
    "nonce": "0x92e0ee264bea4bc4efd72aea9d267c7e699db68b6fd302352b052fff0fb1aefe",
    "signature": "0xea182694ef44233f82483f00e89cf5d5e789b578a7a7ab913e09931bb9f9ba7120892ea0a6856b80c542aaa2d0eca30564fe3362b7b827cb15290bf10ff762e41b",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}