{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "494935131",
    "entityType": "User",
    "nonce": "0x94d7189c67e9dd102942a62801c1eb10d280be23fc1256c8bba7847d479ccb5a",
    "signature": "0xe23bbcd12937ba8d5a2f2c0c02daff43ff33bf93b59faa6a0ab670bfc8592e6025aca9c27a40cb90e1167d558da66d00d44fc37b6250f6be60fdc176466273761b",
    "signer": "0x0d0E0D19797534AEF52736C60B52793E9f88e24F",
    "userId": "603294620"
  }
}