{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "193889654",
    "entityType": "User",
    "nonce": "0xf56a49bb7619a1cef7f952f4673eda3479c89b946a431000ecf4f92ec312a137",
    "signature": "0x06c7f9edca5852fc0b591fafd56f0253ab875c8be180796a4d08a1a3012d0e6663d0c6f0a186835418b2ee110a784115e3f9205196089d2c32362c46b00bd0841c",
    "signer": "0xdEc12eC3F7972dB51907501aF18eb17FBa37a413",
    "userId": "211416595"
  }
}