{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x9aa117a2c5c2730fbfd58ba4fce93345b708d8e254cbcc363160846f8e545187",
    "signature": "0x36bb0b4708fde434bb6e7f4907521fac4e0f804fff5daa6903979253fd69751c04d908e6fa684afb1763c7ad60ac37c5f6e4f41f75ed8b6b9374332cb727ac631b",
    "signer": "0xB37A2a5436fb15EeB8e72a1203E90F9Cb6A5f8Cf",
    "userId": "498870413"
  }
}