{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "428192787",
    "entityType": "User",
    "nonce": "0x72d6e1bf49691c58690e8e12df9726dc7abc2ed6b65687f6d3d2de0afd41f781",
    "signature": "0xa5ae247bdad6c66a86a5212eab652cd712f79ab159d26190fff9b352b0d4059209346a9c2d923ae5e9ef09ac1a578a80914602fa87df104ef41b95b912932dd31c",
    "signer": "0x962AF2A26d37380825711fED9E6c8e5780A24650",
    "userId": "341890729"
  }
}