UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'U/MU5UB1Fa5+nS4XW1NcUaYC16kscr5CszRpQYdiqX0=' 
WHERE 
  key_id = 'b5b25b693b9ee6548e4f33edec9c4f29a7b459b8e20872b259e608087247f4e6' 
  AND (
    token = 'U/MU5UB1Fa5+nS4XW1NcUaYC16kscr5CszRpQYdiqX0=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )