UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 300, 
  token = 'D5ml8kAcq8Vmd09OLlG54jr8AeBx2ZCiGy2cF64HKSg=' 
WHERE 
  key_id = 'ec4d26248d1cea75cdd6bb7276ac5db3191f904da832d2d6df2f9bdaacff0833' 
  AND (
    token = 'D5ml8kAcq8Vmd09OLlG54jr8AeBx2ZCiGy2cF64HKSg=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )