{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "192467",
    "entityType": "User",
    "nonce": "0xa91b6cf6d445454d74c20c22c830788fce4e3c750197d0a91672f87abfcf4b9d",
    "signature": "0xe63d40a264d08b00f46f79eda9158220400ac9cbd819e5845f5619799e9b8f471c5df4cc05053238ae0699d469cf9c611c3f8bcd6bd2887b841f2dbbc8e0f7081c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}