{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "60753512",
    "entityType": "User",
    "nonce": "0xd1d80140654cdac7c6ff5c711fa51159693cb6c0454b9c1845d67c726c2b0c4e",
    "signature": "0x291b25916ba341c1ee77f50fbe7090c499f34e64467c223bbf4950e305434bf417ca0cf49cc079dd293e06a9f5a5facda75f4354bca2d200630fb247e366de821c",
    "signer": "0xA5fFfA5b8673Fb93490E3F9B0BeE58e1f0Ce1231",
    "userId": "508186998"
  }
}