UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'W0gCyjaWl8YFWh8UJ928qI0SFLZxPu9dGfxXp4jk6/Y=' 
WHERE 
  key_id = 'b7ef42f5030b082192b21b18e581f333617641185d8426bce0fc85da43b2689e' 
  AND (
    token = 'W0gCyjaWl8YFWh8UJ928qI0SFLZxPu9dGfxXp4jk6/Y=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )