{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "78675",
    "entityType": "User",
    "nonce": "0x10865095cb463513faef3451ed74e15e14e268d7d7f18ae660b42b574f7b3107",
    "signature": "0xe2a721b914e472a3131346e6e23f8973ff103a26ad7bbd3880a4cff1adbab85a2f31f1720e13f1e859eef55560df1837bb5de7794d055be57a7b34a725978a3d1c",
    "signer": "0xC965eCf215DC75172bD11e8E1dbE76EDd838886e",
    "userId": "260849"
  }
}