{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x007e5138db732467112de4722b81915d2de801525380f2dbb8ef629793a940dd",
    "signature": "0x1a30da44fa7997f78d9390ebcdf37c329f40b0d82f6316d37f2f50f458f688d77f4f1cffa767b5f69838a6c5a5e03159bd09dfb1c5dfc16234d9c4de324200621b",
    "signer": "0x88D453C6A497F83c176bCE8F25e6F00ae8510cA1",
    "userId": "971524822"
  }
}