UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '76VVW8XvAxXMYCgNIOyxwit93AlYnXxsIwsEZtDbVBo=' 
WHERE 
  key_id = '56e0d51d3b5812f43b42a1c4131467712d036d8eab7b0b59a0732a7c19ed92e0' 
  AND (
    token = '76VVW8XvAxXMYCgNIOyxwit93AlYnXxsIwsEZtDbVBo=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )