INSERT INTO cscart_lock_keys (key_id, token, expiry_at) 
VALUES 
  (
    '388d19acb774a4722c0e815c7550772b4ee689463b0f343f26f73351feba61d9', 
    'rdxYL0vvMwUPVWQ2IaeFtx9UVtGec7/WkXdSJkUwdUU=', 
    UNIX_TIMESTAMP(NOW()) + 300
  )

Query time 0.00030

Result

int(1)