UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'W2lRSswOu1VLiWYp/Ld9XJLPn2phxIIRpfKhWPF1p1c=' 
WHERE 
  key_id = '68f18f265124ff3fd2834b9477f87df85454f80b1876b30dd8389e50a7f7503c' 
  AND (
    token = 'W2lRSswOu1VLiWYp/Ld9XJLPn2phxIIRpfKhWPF1p1c=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )