{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xd9c178562d86a9c3205864a444b16f5271c57c037db230c6864c7f6a54dc7097",
    "signature": "0x601a6d978f6f90e283f112ed8cf10875c6180b3ef90c37bd18a102213f4f1b4d502a3333787304887f626036c621d9be07085a313da07bdfb3d8a87e94c7e63f1c",
    "signer": "0x188E4f1A49CB14A8e074657a764F5f614329985A",
    "userId": "695296818"
  }
}