{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1037406",
    "entityType": "User",
    "nonce": "0xcef8281d52e6992a6da26fc576245108e97a75f33b8e1891dc92d8836e27d411",
    "signature": "0x20f2f1a993ebb92b3d9efe52ebf5107adef7d0077e5c20970587177ed38a35a7123081bd650bc657a62197cb1df31fc9d5b9a863d6a3a98ae18807373b23f3e91b",
    "signer": "0xE534A1ad2e8E1f616866185D1efDf463B0eD38b4",
    "userId": "353625"
  }
}