UPDATE 
  cscart_aprillock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'sdzSdlpmXyZlpemWECmTHk8BlE3mRBXlzZc/u8L7tMc=' 
WHERE 
  key_id = 'a6c148a83bc23789e49f0c045886edc65e0e3de31cf3e1111bc959c8c4b16080' 
  AND (
    token = 'sdzSdlpmXyZlpemWECmTHk8BlE3mRBXlzZc/u8L7tMc=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )

Query time 0.00034