{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xd8c1319228d4a0b25e92683274d48a0a4e9c360c526566a5b3c5fa3aaf7700cf",
    "signature": "0x7fdf4d55b87fb72b64c907d94af8d846d50d559e7fa623c4c4c61346811d17474cf75d4876ca6e8792bd2256dbd872f86a48d7358f2f35d57821d42c6abaf1071c",
    "signer": "0x96c50718472DD1dFeDFa00e4Fc8dC13AB0fa8226",
    "userId": "867074934"
  }
}