UPDATE 
  q_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'gaG8WGV//P4LeG8bVUhVpm4RYFL8O76OJUQzOr9MZPA=' 
WHERE 
  key_id = 'dd68103cb961b12d6a144dc7a811b25e18f00817e2aee26a8e9bb41768e88fd4' 
  AND (
    token = 'gaG8WGV//P4LeG8bVUhVpm4RYFL8O76OJUQzOr9MZPA=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )