{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "57911",
    "entityType": "User",
    "nonce": "0x454c05eaa0625fe1df4cb82910558099d13725474b4b0e11f5938fcce46e9ec1",
    "signature": "0x87e62fc43344e2ccb8ddf2cae403bbfb63b8e881d00b25897a04522dee7560953d4aedd5c538940c93899cb05326a7053bae38456049372838585914e16926aa1c",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}