UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'vcwfKWmtBZ0mncz3RVQTDVX2gTct9Bi1S89A2CzAotg=' 
WHERE 
  key_id = '7851dbc11f440c514aef536c29bbc5bba38887ddf0f7e070c27119495d34f716' 
  AND (
    token = 'vcwfKWmtBZ0mncz3RVQTDVX2gTct9Bi1S89A2CzAotg=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )

Query time 0.00031