UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 300, 
  token = 'i2QxKxcfVcuFLIXbTS9eUzHCAlDcHTp0AKKFclUSrQQ=' 
WHERE 
  key_id = '312e4fa61a0e2704f992b9bfafa3d871b3f3f4a5b7160b83bc5ba94f66185508' 
  AND (
    token = 'i2QxKxcfVcuFLIXbTS9eUzHCAlDcHTp0AKKFclUSrQQ=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )