{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "844825045",
    "entityType": "User",
    "nonce": "0x7b4d7f1ee33d1ab93867d0233e34b6c7e41725022274164381c16976d81b80cb",
    "signature": "0x302a05f9d0ecaf1fd18b50f722b2fc23ba0657fc2c731b3dc22df0e7b314b99b431f41e9926915ca6b89c49728f75d470dea30c53dfe9ec3f5dc521828f6ff491c",
    "signer": "0x03216709b3C72cC48C8Cbd8E8100689b00Dc5b63",
    "userId": "530432949"
  }
}