INSERT INTO cscart_multi_declock_keys (key_id, token, expiry_at) 
VALUES 
  (
    'dd4d36b1a17d40beab3be62e2a30750be185ca7db199636b647a354aa337031c', 
    'DDtGrLkhIiP4OcYUkQtgUqjm9sOE9i1fVQgD5co0B64=', 
    UNIX_TIMESTAMP(NOW()) + 300
  )

Query time 0.00026

Result

int(1)