UPDATE 
  cscart_aprillock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'v6SYtIRB6zusn4wkZ3R5Iq7srhRSF/ZDiOxOYWXFWrc=' 
WHERE 
  key_id = '688a436ec59674dc4c173296787d590438d668e053e0de6a56aa8bd4f8e0305a' 
  AND (
    token = 'v6SYtIRB6zusn4wkZ3R5Iq7srhRSF/ZDiOxOYWXFWrc=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )

Query time 0.00036