{
  "manageEntity": {
    "action": "Unsubscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x9f426ff4907f292b8a6632f104fb702d30f5308be6a43f88ad27dbe83724f46e",
    "signature": "0x5cdc3d7fe16416bca5043e2f676112057555b2b3b00761758257404597e0166f0185095adaf1095b4cf0f681d359a1e5b536539f20078a2665c1a2bea8e7efe21b",
    "signer": "0x15A2d8daAAd4924f264fF43629DCFA026583216c",
    "userId": "149116140"
  }
}