{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "405117",
    "entityType": "User",
    "nonce": "0x39420764244b3a0969a93aac269bb35d78201ccd7142d140fb85817f907840eb",
    "signature": "0x14cf7fa25b7c5a739678acf0b6e8a448a04209f6970695250f6d9d68aceb02913d5c64797d0324d1984e689786b9e272a833660a25b27089a07c6cfbe7992e651c",
    "signer": "0x7c5233DE7A8aD918D090BD36cC8C0e6273814D60",
    "userId": "559710456"
  }
}