{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "124266",
    "entityType": "User",
    "nonce": "0x8081d7a4a384dc9bf8cbfc480c3cf1970a8f067db4627b1cf7a568c78d4b3da3",
    "signature": "0x50f0ea5602b1293b3eda958220f24091172cac11442053ba8018c4c45daee930385f52cfc02eb69766c1d818897633a13db9c67251fca8dd9093b6b0d2e43ba01b",
    "signer": "0x12EaF77464824447aA995e75Dd707B3e5246be9C",
    "userId": "409175645"
  }
}