UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'b4LKdZgecxXVHa0ta45WBx4Y5qQX/SG21OLvvKnq5dg=' 
WHERE 
  key_id = '51cb81e958fbfc7b037cdb1065ad2a97484e5b3ae597fe2f4d4b20a03f4fad0f' 
  AND (
    token = 'b4LKdZgecxXVHa0ta45WBx4Y5qQX/SG21OLvvKnq5dg=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )