{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "155973826",
    "entityType": "User",
    "nonce": "0xf9aca6804276fb7f162512271ec0b428e7261e38a49d74ae801e6ba71a784c32",
    "signature": "0x1a2501c112661fd51aebb58ac46bd1c7c943caec7bea861ffcb5276c428c38c67206f6fc3fd3db4f35033b67793d2785262ee2849c099ea7160b43e60359856d1c",
    "signer": "0x9d5d1f1a59bB255396F7F1e7DeB307A4F66f15ec",
    "userId": "429311703"
  }
}