{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "733390006",
    "entityType": "User",
    "nonce": "0x2d888c6fa599f3addff6fa2b6f7d827e838def64aa4514c7c1e88b9438443275",
    "signature": "0x81ce386025b2e98945d039002b9132b047dfed28fd1971791c398a4f4bf9bc31115ea96d21f50d1db02635952a50aa7913ed391086ec0b598c60504ceb7450f01b",
    "signer": "0xC965eCf215DC75172bD11e8E1dbE76EDd838886e",
    "userId": "260849"
  }
}