UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'eZ3JYi2szDXAdv9D2C2u3LgqHoBIwUkvkI54TR7boCU=' 
WHERE 
  key_id = '51bc2e06048a3896e601e7e4b913103c60d79449894e5f2ee00f9d898e93c893' 
  AND (
    token = 'eZ3JYi2szDXAdv9D2C2u3LgqHoBIwUkvkI54TR7boCU=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )