{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51879",
    "entityType": "User",
    "nonce": "0x5d5e5bec32c0853910327587238f353c5777842ad8e6f780aa5e1cd412b3cff8",
    "signature": "0xb75d3b6a882ce055e51a3ef13900347569cbfd067ad61c7fe65fa289dfeba2b879a13abac4e3ca39e5d084b2649830e833df2c75500e2c7e1199f77c82e48cf11c",
    "signer": "0x5fa60F185681545769de01098bB8F29cfbaE3cF0",
    "userId": "489026160"
  }
}