{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xf96de4a6545825a18718659aa321c17463aa63f499fc72de415f20688e532890",
    "signature": "0x16ded5ffc803088dae1587edf54e04676cd8e51d26fdd4bae2976d1bb9c934562240f902d4e78a3c58b942db5e8b946eea741799815a4e509f90f682c1d8a9a61b",
    "signer": "0x6b41C0257860c766D288f3A5CAC12beA1F995686",
    "userId": "519198051"
  }
}