{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "392950",
    "entityType": "User",
    "nonce": "0xe18b8b7fe796e22cc760558d8d11e57a52ddaecee0d6fe6b47c9d32aef5b21e6",
    "signature": "0xdb7f1c07eb6133b4a5888eb8039b3a88634850bf2cbb0edc4311057c090438d838f202142772fbc53d0ceab69bcb1adbbb44a137cb9044f5d89642291b6b6ff81b",
    "signer": "0x55F8937EF7902E83b15F5BB7c7bf72a0a2989C54",
    "userId": "233666542"
  }
}