UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'b+PlSkDni497iBT3FrTay87eMgavLcPtN5uubpmm+P4=' 
WHERE 
  key_id = '839462d09cf03a1449787027f4d1d3b800bbbceaaa78c576dda3e656fc3ce621' 
  AND (
    token = 'b+PlSkDni497iBT3FrTay87eMgavLcPtN5uubpmm+P4=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )