UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'zqJXn2o5R7ddhHUMU2dGEmzQqfdiiIaFhpKHYBua+DA=' 
WHERE 
  key_id = 'b39f5265f22f682959f328c02e3b3caa29b084c612fbf5997bc8a0f61b405144' 
  AND (
    token = 'zqJXn2o5R7ddhHUMU2dGEmzQqfdiiIaFhpKHYBua+DA=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )