{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "190942",
    "entityType": "User",
    "nonce": "0x9721ef7373c41a9729005ed150d240497f9d1ad6e012a091a32796faa07c3d27",
    "signature": "0xd2a59abdaf233414c5405d0afac116d65135cdacf0a7afe451814918b69b14fa244fd0a10eb148cfbc568d86d1c34fae384390a7ace055a5b5b74305301fe2331c",
    "signer": "0xFf11BDf758Fbf6d7fEb3FDa5D3c58F7E7C720fA3",
    "userId": "49482808"
  }
}