{
  "manageEntity": {
    "action": "View",
    "entityId": "12890",
    "entityType": "Notification",
    "nonce": "0xb4e4ea53112b1b17069dd89db27774ba6f5507dd07a3d139af3dd822a0e6a183",
    "signature": "0xfd7e576d74d660a6b90ce33b7df92bcc2f4f4d7349f0217bede0ef6b5c18081c2148faf8f0ca289c497f54588b5684473b2d5a298123cd9aac7bb1d7d7f684c51c",
    "signer": "0xb8Bf68e2681FA1A8a8ce9c78070BF9644e947378",
    "userId": "12890"
  }
}