UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'eRUAwdgn8xRK2U3tKBMS/autaPRYcvPEfmkBp43FLYE=' 
WHERE 
  key_id = '27cdd6b0a60f8cab8febac7697803490a52f065abf58e5ac81c548bae86d864c' 
  AND (
    token = 'eRUAwdgn8xRK2U3tKBMS/autaPRYcvPEfmkBp43FLYE=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )