{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "191315561",
    "entityType": "User",
    "nonce": "0x4f894dfb54b9a51b390aa2b044f3f22b986c99dfe8d887b8e7278628a6cc6ffa",
    "signature": "0x028287747c8a5f81285eec28bcae19ea6b3ebeb053836e128b2290ae8f4296f870ff3ba77d56dadf994e65d6167081d7170748cb7022cd69f2d34f090f6f3f8e1b",
    "signer": "0xc74a5C0B76bF95109EFE2119058182fD3D75EA63",
    "userId": "222972690"
  }
}