{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xca16e3c2b4eadf7e539af6b6159485a9cc3429baaaf9ebd29555bbd1b628fade",
    "signature": "0xd8a7a939f244005861d8246ec6f7c015711931a5a6946d455d5219e24ba2f48457087538ee741e89c4e82a02086746ee4fc3b1dd26616a893156b922b9f3d0ec1b",
    "signer": "0xd49947a7405D8c200B874c017799a8e14260A50f",
    "userId": "204700448"
  }
}