{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "215993",
    "entityType": "User",
    "nonce": "0xe549b5cdef49694b7b9b975cd780bb2949ef7d0bed81d190cb3e5e41e2e32410",
    "signature": "0x005792a81d69ba640dc2ec515edf2c0845b73b917499f9749d1c2310a1fa7e4c3b5f97fcb803769c747f6945dcedae7da2cbdd44ca55793b74fd2a68b9dc440a1c",
    "signer": "0xC35123bF05ca0B3A7B333c53E47bcd9f9DA864d4",
    "userId": "33896318"
  }
}