{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "333508153",
    "entityType": "User",
    "nonce": "0xc912acf8ab3bec19b18233f8c911138b88c97ace1ace2206a5968a19f8c5f0a7",
    "signature": "0x4aed0dbcef492eb5a6657e419049456b6e4919e2bce782abdc039caaa720f0f5615042a80626ed07d2bcddb962108e645ebc1ca135e337e7e85757ed8f04a1181b",
    "signer": "0x27eB4b469aE053b72c26B3e9c68a655390Fe24fB",
    "userId": "42216"
  }
}