{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x28a04f7e9d7267ebd3353a62e4ab35c6bec70234ebbaac8e823021e72cb71569",
    "signature": "0xc3fb81e4dfec165bcc3ea3b9f72f3ee356c9685d4e3151c1c280de0e5ea240cf6742b20db25c5f875d32180b83f684587f8d971f5b57b5948ed12f68b7ed52ae1c",
    "signer": "0x1D6CD0F4a3748C8b15b27cE142fb879600cd33f9",
    "userId": "49877197"
  }
}