{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "506671051",
    "entityType": "User",
    "nonce": "0x076f65b396c2fd9546607e3a14549a8221ef57479ea48b3826690b345419a8ac",
    "signature": "0xe89ecc7a4aec5b039fe1c8de17c761cfc8193d4ec46e290b70074b062c0d29cf0edae8e0862631dfce9ec75617c66029494a9397925e2f8075bd0f774664d1f61b",
    "signer": "0x262a2A1c96da0dFD6f33595c8D775BefA860d02e",
    "userId": "486490947"
  }
}