UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'TCMeq1MVb0hI9JW4j//Gwz3HxLFSqcK/rjyQuJ3vG38=' 
WHERE 
  key_id = '535e7a22203eaee73304a5226b3a70b0159bcf4426ffabb51d60064d0a53f8c0' 
  AND (
    token = 'TCMeq1MVb0hI9JW4j//Gwz3HxLFSqcK/rjyQuJ3vG38=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )

Query time 0.00027