{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "43430",
    "entityType": "User",
    "nonce": "0x1459547babc0a288761ecd1bab73d9cad6935463faebe566c6e8810e6ed61cbe",
    "signature": "0x2a7010721ce14895adf1e92844805892ac04eaca1c7f30aaf879805df5d8e14c7c893bb89fbc2f4432ed540e9f4f0b7747c779ee571e810b9c1da5ec7a90ecf51c",
    "signer": "0x9590a7FC32307801cFD04D758af761B7C95a3Ca8",
    "userId": "840971659"
  }
}