{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "41804",
    "entityType": "User",
    "nonce": "0xf2e7fdf61f9b82dccf854c2c713b2c5acbfb4364744e1400ddd5bbdd509ad562",
    "signature": "0xfd70b2bc3bfc1b88796969950c682a2107e0555a72f9ed2bf0ec30bb15bb51004c56d4000428cce9260aac6c4265bf1613577b92b0888a3ec97f98d4b4e1d3871c",
    "signer": "0xA5fFfA5b8673Fb93490E3F9B0BeE58e1f0Ce1231",
    "userId": "508186998"
  }
}