{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xf26baa96a918fd87167bfa708c4ecb9bd4f6bcec6a6919907646bcef4b666597",
    "signature": "0x8f5a08309de01d64b206eef507887202a36df7e38ce8da623b7c5ef72cf614d03f155e40e9cc9f901ba3dbf6116fd2d9402e82f61da7a2a048ead3b569aa8f231b",
    "signer": "0xb5902ac1A81A6B795210DdEB50e8F1FdaC9aed97",
    "userId": "842982090"
  }
}