{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x70731644a8226d78823d35dd15bb6851f60cbc76d2f632b574826f49c4b818e6",
    "signature": "0x1fab8d85346bcd60cc09db669b9dba64b72aa47995761a95ea75758b6fb67ec4322177143f5c8c12e361558ab8f71c665d0793b46e9e98a6d2769aefb6fee4261c",
    "signer": "0x809994612a6b13651FC17564142C61C389e13Aa3",
    "userId": "59593477"
  }
}