UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'P39APMfDSDFWQokTJaN+mZohplFAITFq9BlsVASQjWs=' 
WHERE 
  key_id = '2804873ea7ca8af932f1d3e13a900a45005053d2521572459ce278b75c78c76a' 
  AND (
    token = 'P39APMfDSDFWQokTJaN+mZohplFAITFq9BlsVASQjWs=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )

Query time 0.00025