{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "214528491",
    "entityType": "User",
    "nonce": "0xb9ac269e8be5a3db8e1ebace80e7acddbfafc7011c06fa90c558ef21b37f71be",
    "signature": "0x5da1bd53d846972064f8401fbdb1ea4716f417f724e530ea987d25377c0ed97b7b9d87942ad8524d9b18a2eded43082c88f9b3b3cefcae43668db309fceeb8fd1c",
    "signer": "0x793bbEFbb3Cf1e6529B90296e502145aCcCDE8d6",
    "userId": "838777725"
  }
}