UPDATE 
  cscart_aprillock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'MznaGQNqoSzy2fuhNAjoyS42LbA3Uj2GlKxvmG0aoeE=' 
WHERE 
  key_id = '0fdc7832e4f5fbbc5498eb364d6e03558e81feae9bdde2d779d3a416df541e38' 
  AND (
    token = 'MznaGQNqoSzy2fuhNAjoyS42LbA3Uj2GlKxvmG0aoeE=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )

Query time 0.00037