{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xc0063c9cc0097052bda772a88ae6596c72a3d1fee92878a837e0215c44b4a757",
    "signature": "0xcc6d7c20a9d5f90147e5d349bcec82520e3d1d949cd81468226d2d6accfe97a120d2610133ab264a600c8acbf7c7ce631f77f5898fd5f8464ad35bada64325381c",
    "signer": "0x1EEEf459C8e361773166d5681a5066659BC751D5",
    "userId": "210033902"
  }
}