{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "779276160",
    "entityType": "User",
    "nonce": "0xb8f1343ed85c37ee515188e628b063ddfc75d32fafa3d748e6915b67c3a2d1df",
    "signature": "0x5ec797965aeb47ef19b2c01953217513500f82caf6a94c304f17310cda531d900f81fd36f70957914b2e7612a172fa4ee66ae664bdd8e7eebd17e60f54ac42551c",
    "signer": "0x8c3D25fB219a7aADC5Dc5E0E73241f396f41367D",
    "userId": "524891281"
  }
}