{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "557210595",
    "entityType": "User",
    "nonce": "0x3d226f5fe48ad4a0001a4837107a0c47c8c2429780208a27d99d1c7d27532d8d",
    "signature": "0x0af474ffd7a19baf877df849188abce349ed9220b292ea90c9a3ad0bf71946f1173756cdfb5b24d9759bbfae6a34b6d7e8fcffe88bdc864d7977b0b96e74ac1b1b",
    "signer": "0x849b8180f084363b37768C823c174C9786020A66",
    "userId": "817339612"
  }
}