{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x666a6d9f56723aac8175592471cce66120134c343225c139eb6bf6b693812a8e",
    "signature": "0x308c572a2a94b70202094b6ba48e3ac938c4453ceb4f73754415aa4e4c35450a716552ef625af1c7515c0bd58e1e9eaa8202e1894f622f8cb369671829bfcc051c",
    "signer": "0x44BAdCFCf42113CbB67f519e4efa576B336f9bf7",
    "userId": "136844578"
  }
}