{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "392099",
    "entityType": "User",
    "nonce": "0x7201a14c918bad5462e6b6c8fc683e24a2871a439809414860f1dd59120b4fb4",
    "signature": "0x4e703c72046a3081c73d4c7300f490966a73e119d33c5204b44844656c22d3fb70d86a7d601ce9de62d818448895f44f704c1db9c0d9f5f803f7cbc4079cee9e1b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}