{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "200080308",
    "entityType": "User",
    "nonce": "0x0b16955cc3e7a9cfc6c2c3270d842153ece8a003fd962947d1a609ffd7b5aad7",
    "signature": "0x1a36bd5a6e645b0052add930edc875ba89d224af409948afb45760c0d0445b537f7a8ad87eaa5c7e427b9df30d9fe604770e3a40a4c2bd00ae46771b6f541c4d1b",
    "signer": "0xBDB0D4b954b76aa82E858272129d43b54aa159f2",
    "userId": "745218801"
  }
}