{
  "manageEntity": {
    "action": "Unsubscribe",
    "entityId": "299976",
    "entityType": "User",
    "nonce": "0x05dab219f1b79223c9e4e573b015f5699add7e01b7a4b885340f82e42e869479",
    "signature": "0xea7fc649dcc0fdba13c5da6e42a2daeed92e73135972e1ae03d33aa9ddd54c23089a44920f287067f6765e511ac089e5e25e4ed80be4b477d7491780003705801c",
    "signer": "0x95B378bAaBcca47f15C460388CAEadc2772f66eb",
    "userId": "140"
  }
}