UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'UHamHb+T1Pn807+m2QqQzahgaRTyYb98s7K6BRF1B9M=' 
WHERE 
  key_id = 'd9c17a3fe4a5cafd5110f46596cda0af1219df9056707fbffdff1b301f9acfd8' 
  AND (
    token = 'UHamHb+T1Pn807+m2QqQzahgaRTyYb98s7K6BRF1B9M=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )

Query time 0.00011