{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1831424",
    "entityType": "User",
    "nonce": "0x7a6f041bf7cb6968a77f4b3799fc86bc853f2613a966b3845cbbae311c7eb30b",
    "signature": "0x5316460487e99e65f28c79e89a90378ef7e8c0969f9768ea818b769eec996b7f3bcf72a5c09acd5e47dd253a9ced604a26e2af3d84e0ad912318c1eba46c8d211b",
    "signer": "0xC75a276D0a36850045510B0483E737bCDd1F5E9b",
    "userId": "588125677"
  }
}