{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "310796",
    "entityType": "User",
    "nonce": "0x1959c54ada4bd3f857a9c6c7b46f11d0b5b52894da798852c3e5b8e488dedc54",
    "signature": "0x421c4c43462d7f780dd83ebda5861aea4ccfa0a418143e6c871d62bf75ff4b5668291c94788259cec724151db167d4c28506ffb5fecf7a0aca0b9224258039b11c",
    "signer": "0xE12C4999D417252c0f02E160bce541D4E85dE1d0",
    "userId": "166066089"
  }
}