{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "125737",
    "entityType": "User",
    "nonce": "0x815cd1c19830f1dd711b90d8a410495d996b8b3d6c4e176c96a5c5352f107870",
    "signature": "0x94719f2b5b61adb0a6b20e46c0ef30b058fac28f7c5320ee3eaa5f8b74342adc1971ffc2e1700e6ea5f24d6c83e865cb8255a05bb5180c284f8bc0218075177b1c",
    "signer": "0x793bbEFbb3Cf1e6529B90296e502145aCcCDE8d6",
    "userId": "838777725"
  }
}