UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'Qk6nw97i8ORbjOTwqnM+zmyhMf6G18sdt3qcLi2gsN0=' 
WHERE 
  key_id = '8a28df5074a53a2f6fe273b177c40c09ea75468ae1083e41bb1eb38edfd75c4b' 
  AND (
    token = 'Qk6nw97i8ORbjOTwqnM+zmyhMf6G18sdt3qcLi2gsN0=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )