UPDATE 
  cscart_june_setuplock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'Dr8clh545kpMIVZwDtFNP87Y+5ukCj6zcPMRf+Jx+EM=' 
WHERE 
  key_id = '5b49e90fdbbcbca0df769c5ad7a75241367c9c04644f59ec6add3f8e19a8529e' 
  AND (
    token = 'Dr8clh545kpMIVZwDtFNP87Y+5ukCj6zcPMRf+Jx+EM=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )

Query time 0.00030