{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "881446128",
    "entityType": "User",
    "nonce": "0x9aab13c9177a5c14fb25a0ccc32f32de88874a952d59bc5ece3abcc689397c35",
    "signature": "0xe9cc079ee7574732f1f2993e2e4ca9b26fcb440e32fb47501bd57446501a2a67610f23d73d185024ce0a95c032889c8d0d2ba18667ff128e54a0fe60ccbe85fb1c",
    "signer": "0x94d1769762bc3a1e7DCd3e8a31C89Ff199833Da6",
    "userId": "715573876"
  }
}