UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'Ll9GrVPAuIUkNGLYQSFtBM0qGuJPYHK4NUmmYvdCFRo=' 
WHERE 
  key_id = '977f8fa3bd04ea5bc5475e11a192f3d85cc15544585c258b1f03c68551dc7df1' 
  AND (
    token = 'Ll9GrVPAuIUkNGLYQSFtBM0qGuJPYHK4NUmmYvdCFRo=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )

Query time 0.00016