UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'e8c/NZDL7w00aujCriKUFkmtpFXnp94ncQuVGDDtmrw=' 
WHERE 
  key_id = 'c51d1a1f7056d7f33d713735f1e8f1f37f4f84225d100e89c3091d182a8454f5' 
  AND (
    token = 'e8c/NZDL7w00aujCriKUFkmtpFXnp94ncQuVGDDtmrw=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )