{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x45ce3806c25bddbc94d9472e79143f034be7dbffdaca3c1ae3ce0d2e661dde8e",
    "signature": "0x7502f4d95c5abe5eeecaee3d517946f93f4c03d227fbb5ad29ce8f588d8cc60c29792ec153ca85732de027b213e7f59bb202ca04ce681dc78b89d948a5424da11c",
    "signer": "0x7fdeEB144300AC6b1Be0E83d8f006b2D3140F73D",
    "userId": "325377357"
  }
}