{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "54212",
    "entityType": "User",
    "nonce": "0x91d60aabe4fc1dfea0180b4c87be5620de67ec8b435c37481240088ae48b7487",
    "signature": "0x4e575da6bf3ea480e0cd7ade47168e5db4d05c8682d9c7b1713542525a6599c615783aae96fc46286f4b9855ae635b27bf0cbb5e60a4550d1168b4ef9e3fcbe81c",
    "signer": "0xC35123bF05ca0B3A7B333c53E47bcd9f9DA864d4",
    "userId": "33896318"
  }
}