UPDATE 
  q_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'mEZ4QP4pYJkK2a5NBVouUZelLxRb7fhmtTqeS65P4D4=' 
WHERE 
  key_id = '8850e34bdcef6a6988eef8523706c43fab14deab30f147d9c43b6ca27012779f' 
  AND (
    token = 'mEZ4QP4pYJkK2a5NBVouUZelLxRb7fhmtTqeS65P4D4=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )