{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x6dceecc5bc017e810c886f02743641f72b8d2dde84d556409fea3ea5fce1705b",
    "signature": "0x524b75e2f8aa22fbe9d5002489de706ee09c9c13a79c306254e7b3dfa13c5c3c41db3f2ab91049a0e531067d1555c242c7823de2b8f8e0688b325c3112bbad0a1c",
    "signer": "0xa69672CF7EB13bBa3667681983E92EcB8207FE8D",
    "userId": "886503471"
  }
}