{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "301606",
    "entityType": "User",
    "nonce": "0xbfb4530f72e0ddd0d621c7e730b20fe6291efba2c9750fd2167ed48540f4edc6",
    "signature": "0xb3fdd5f9acce5303063fbad0042b6cc7205ca5671a0c6aeef4bc0137478ecdbd126a9dd7fc0df421968cd013eed28a23f0ee1b77c43184aeadfebc11e73ae2281c",
    "signer": "0xdEc12eC3F7972dB51907501aF18eb17FBa37a413",
    "userId": "211416595"
  }
}