{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "24850",
    "entityType": "User",
    "nonce": "0x5edc8329482daeacf240db63aacdd4ace2a4f5e0e9ad6ac3503b07ad576b8cc5",
    "signature": "0xf8684e11054569dd93162692f1ce2586f308b427e5501acbc912bfb9dfcd5aaa043a4a9f2ae51b78e4efd013e96b532f370932dbebe1ad04f4d9dda5f18e893c1c",
    "signer": "0x55F8937EF7902E83b15F5BB7c7bf72a0a2989C54",
    "userId": "233666542"
  }
}