{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "372587631",
    "entityType": "User",
    "nonce": "0x628c9f3a69d8af00c87040d16579e7ef39dfbe73aff82e4966300dffbf215af3",
    "signature": "0x602ba8e6bfface9d777162846fa48ffa0c5d1ab3f23a7aa2291a2431c99bdfdf52e02bd1fbbac6fbcd9079cd0d1499ff6b2fff2648a0f2140b96d22b3c3ccfe21b",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}