{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "808512351",
    "entityType": "User",
    "nonce": "0xff2cb23aa4399b1b173b591ce1e03e96b457903ac126ba2462bccc07ff51590b",
    "signature": "0xc9a9e4e64150339d4fae889e11f4f2bced62a301cd6b7fcf88f3c6be6c003f8942303e8d36bfcc8d26e383c3a84a9adb8764c59f8009132c24f791d49509e9001c",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}