UPDATE 
  q_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'Vu3Mv6YYGgEIASKXAvRcuDGZG5E+IMTlMlMAevIOzak=' 
WHERE 
  key_id = '984a5d31133808e071d3cb7f50aef6ea4a098c8304cf6dcdbabbc33067faef2f' 
  AND (
    token = 'Vu3Mv6YYGgEIASKXAvRcuDGZG5E+IMTlMlMAevIOzak=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )