{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xa65bbf33c71f4c8d523e0434a2a4eb0875607c7eb3dc94e009a6f63555dc37f4",
    "signature": "0xc2e1e0ca7522c103de108b1fbc40a6c8077be66be4f4a75d0e36e30a024ed9692868e202312572e5036e76c1aea9e6e7dacf0ed17e4cbe0dc4770e32ebc6f8611b",
    "signer": "0xF1E622923dCBDeB0fca925183E9C500e78F9ce9d",
    "userId": "632120348"
  }
}