{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "279504",
    "entityType": "User",
    "nonce": "0x768b44b11b8639083dbde8b3787992436e1020d586fab12adad9c50c33738643",
    "signature": "0xb2954f39ef72dca720a19e8851750e09ee660b4d26301894a0d06b04b7d580360e6cf16e940460f31976322be7676b7d265fdce0d32df1151955f924159a73f01c",
    "signer": "0x4805FdB67d3D784D004753e740821f719dC6d384",
    "userId": "25707929"
  }
}