{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "741468",
    "entityType": "User",
    "nonce": "0x017c69c3b05edb14b7bee1aab16512abd694ab93aae0aedde39536b88016916b",
    "signature": "0xc2721c9a305c0f3f9fc7f8874a4ffa6392c733b531ebefa026ae6b161ae37ae120f452958b5750155a241b3c20709c8386c26a43d706884c6bb917651429912e1c",
    "signer": "0xe6896f375EfDD7aE22ea0E0958a36f1Ac1861a95",
    "userId": "43686465"
  }
}