{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x597d0843d8d5289219862436ab9e618cf92ece89d229eb55441f19916d890549",
    "signature": "0xdb0189b03f6fc53c0b2d8acf50534b4e4c7da2539fcb2c39917764fac3e737563f253134595b85b653c683661319c1d8121813a3d8a58d9a959fd27f940d82121b",
    "signer": "0xb87AAa3C0903A341ff13114a9C37f3C51d0B4615",
    "userId": "72587755"
  }
}