UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'BI+6UC+LRvmprLORbzin99uLN7MO9DDqPTlUR8QGQJc=' 
WHERE 
  key_id = '21d2e9b938d31940647ca590cdd2e31148f26408b06f75f796a1379f8b398ef2' 
  AND (
    token = 'BI+6UC+LRvmprLORbzin99uLN7MO9DDqPTlUR8QGQJc=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )