UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'NqAkJE7gu+8j+/tJwIt6bAzYNBxcJJLqX8My6P4hRLM=' 
WHERE 
  key_id = '4b50af38554f1b4880f0010c05b2d5268d442036d8649bd9750c9a5a650431cf' 
  AND (
    token = 'NqAkJE7gu+8j+/tJwIt6bAzYNBxcJJLqX8My6P4hRLM=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )