{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "318",
    "entityType": "User",
    "nonce": "0x5b5de0fd719008fa2f642cf350743884595e965173e5f2817a0d39922027d30d",
    "signature": "0x6f93045d04f4b4d02efc4ec81514de3df179f2e6043f55571e878946aa8c2d2e0ff391d614a97e91b9b719732875d6c8b8326d9811f684a56596d36f02e651bc1c",
    "signer": "0x560CF638EEa19774538D453cC9eC0745a7C66556",
    "userId": "242603075"
  }
}