UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'd2mi0RYKVAAw4hL2IO+73s3RgG+zC9hrYZv4Rxx71WY=' 
WHERE 
  key_id = '6514a4ecf534be5c202decc25f0db71b581268bc4231cd8c8ff28b3a0d1fe985' 
  AND (
    token = 'd2mi0RYKVAAw4hL2IO+73s3RgG+zC9hrYZv4Rxx71WY=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )