{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "18192",
    "entityType": "User",
    "nonce": "0x73dbd0277664139b534449fc200c3135f29aeb31c62e0bc224c451d1c07f268e",
    "signature": "0xae776b7626e8daf78a6489e84483ee65cb7a9509d11227161b15224617941ed97a0efb63a9c0384231e857ace158dde65fd0bc458c61c0727bca3e800079d1a31b",
    "signer": "0xa4A8a4853051b18e0f0f777693Ce34CF4bCe9385",
    "userId": "634886384"
  }
}