{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "956403",
    "entityType": "User",
    "nonce": "0xbf18e81f343ad0075f766597c9de57a6d689a851c9e8bf045a3d8648690a348e",
    "signature": "0xd2992925f184e41ba3678f6cc1511b7e5507c654ab27c4cfbab4539aac1f829b50829abd5221bd0390b7f9cc8e1226bb07f717088e13972ebc3e37c41b6b30521c",
    "signer": "0x9590a7FC32307801cFD04D758af761B7C95a3Ca8",
    "userId": "840971659"
  }
}