{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "17403",
    "entityType": "User",
    "nonce": "0x2d3a508de7b1ac4b6a3d0f4d15e1a2250b33b8e9e28652dc4e807b03a75986de",
    "signature": "0x6adfed05558ff95fdef59f8ff6191c0233407e46f59377cb6c9fab5cb32584396f1c46c842992c8dfe23c6a255bec5eebd4a004f719fe629fb7ae5a4ec0b2b7b1b",
    "signer": "0x793bbEFbb3Cf1e6529B90296e502145aCcCDE8d6",
    "userId": "838777725"
  }
}