{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "2617",
    "entityType": "User",
    "nonce": "0x088b92843691e95e698a92aa45454693e55ff8b97d2920953e717e884d36d2df",
    "signature": "0xe008501abc455cddfa12c190e431cd0028d5350af0df15399285093d822d112d50e3e509ad30b6e7e8a7cfc60f5ca6d31eab6d23777fe55acab3a864867da1fc1c",
    "signer": "0xD24271e3B8CCFB603860EA392E94eD5AE2538703",
    "userId": "456716469"
  }
}