{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "153928",
    "entityType": "User",
    "nonce": "0x3c3a9e615c8df82c71d76224ae1444c82b7a6e00699280c29c29ec8ceba75ed9",
    "signature": "0xae30ef35844ed137c53ed3e0a2cee543e3cd2c6d5d935c1aa441f6daaac6fc6c03d025a66aa7c449f3b6e7167488d55aaa40647601b3ab747a6a57f5c72e34841b",
    "signer": "0x55F8937EF7902E83b15F5BB7c7bf72a0a2989C54",
    "userId": "233666542"
  }
}