{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "527480232",
    "entityType": "User",
    "nonce": "0x8bddd9288adb5fc9f84a32cb81af7555996aae9ee49068f760126ce1406a98db",
    "signature": "0x45db5e58cfcf4b2b598f65a2fe9e648dbda70898103b63dd4342ea3f2967b47968bed52145d26eee91bfe3307bcc3ab579709fae585d23e98eb96fdbc0ce89071b",
    "signer": "0x43dA66b40816c8fb9e2B0AA77E0643192169AF14",
    "userId": "636236864"
  }
}