{
  "manageEntity": {
    "action": "Unsubscribe",
    "entityId": "449",
    "entityType": "User",
    "nonce": "0x530f8cb9265652ac6fa108e4116df2383323b64a47ca97ca3e72397450f94bcf",
    "signature": "0xccd2be94861b18236a8574583b2f4453e939e90dd665f087c97c69e05f51a3d863a464e4fdf31f4dcbc21544a9ce4d9db5ad32c6be2993ba446c1e432c606bdf1c",
    "signer": "0xdAe27B20BF3639989Bd99E76811FEF26BEa4Cc49",
    "userId": "176556"
  }
}