{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1646095",
    "entityType": "User",
    "nonce": "0x6ec99f5d29578c8958df827a211b8f3df08018ff808ccd777fc8004a187b89d2",
    "signature": "0xe683703f989c757e4b959652d049d6189b39acaca0ee21f3ab3d9a267628e50218cd546789fbc30811849d5b6f90ee34fab7ee32af26fc3594745bc5a56c28231b",
    "signer": "0x243A439c272133AEEE0073AF4986dE391C430866",
    "userId": "77551267"
  }
}