UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'KU9aCIm0bKx2IAaA72pOSyfmJZp9+Xin6BQqVi/wTkw=' 
WHERE 
  key_id = 'b946912a053e1cd75e2e61489d1587e6975bbcf876776b14dc1f1b59bd9f1949' 
  AND (
    token = 'KU9aCIm0bKx2IAaA72pOSyfmJZp9+Xin6BQqVi/wTkw=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )

Query time 0.00045