UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'MgwiGDnZarOXxa3Cs2wV3BPuEktIhlLrGdBd3YupTXA=' 
WHERE 
  key_id = 'f250cf3729cb8f30b4ad3bccfb5a0b1c8a3f15fe753f44e9e05c6a7ecedbf790' 
  AND (
    token = 'MgwiGDnZarOXxa3Cs2wV3BPuEktIhlLrGdBd3YupTXA=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )