{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "411390451",
    "entityType": "User",
    "nonce": "0x322613cfaed2bfc645516aac33eb67134eca325ed8b4c3051fd6629383d051d5",
    "signature": "0x25fdca8d659b1e8fa58dd3552caa4fe6e122a512f93c75651fbfdf675e71694535aeabf6010e9df58e047bd45c7abceaa30b145a62203143077cca9715fbca2d1b",
    "signer": "0x7425EdbFdF528603A88c658f4cf8B1396a8a77F5",
    "userId": "406225571"
  }
}