UPDATE 
  q_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'bWrItz+GZKXfYSRVCqYhueUraNTYBVykAAsMUDsU6G0=' 
WHERE 
  key_id = 'be6aaa995702ccd5be234481148b7c8706c314be790a1da344723d9300eb7948' 
  AND (
    token = 'bWrItz+GZKXfYSRVCqYhueUraNTYBVykAAsMUDsU6G0=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )