UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '0+2Cqc6WyA/xI5eNlyhTvpT0L2ntxKxaPmTSDnGKAiI=' 
WHERE 
  key_id = '875b7bfc01c720342e964d310b054e227d4c68239a945f436cbaa4775a240348' 
  AND (
    token = '0+2Cqc6WyA/xI5eNlyhTvpT0L2ntxKxaPmTSDnGKAiI=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )