{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xb6a067975d18a116a66424296a8516adfcc99fa7522a6ba134fbdfa62be2af98",
    "signature": "0x346cdcc526f0808609c787baa53e9c06ab2169eb799b7eb9d4382b115b255d9126731776de769eeaefacf5dc70d904b7e9a09f8f8a189455cfb9ca3ea542b68f1b",
    "signer": "0x6DbE281053BcDFD9280798854F82cEBBc9bC2b93",
    "userId": "152666819"
  }
}