UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'ekQ/bH9aitS8d1ptHfAlqutSlyEg7TpQySfXzT8ry34=' 
WHERE 
  key_id = '7a51084b347f82db32fc7e2c5c76d274af3a0f12e088aa12503686060e1ef175' 
  AND (
    token = 'ekQ/bH9aitS8d1ptHfAlqutSlyEg7TpQySfXzT8ry34=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )