{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "190009",
    "entityType": "User",
    "nonce": "0x2c2ff0fbb2544ea590205021bc7872be26deb335299e1bc93fa5dd5367713f3e",
    "signature": "0x6f637a981aef83da883f411b30a462c7f6f25ad4fea46adf65bffab756734462053d39c2203b3ccd58f1d93c716d6bd3e3d572aaf14cb66247f1e12f1e58dcb01c",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}