INSERT INTO cscart_lock_keys (key_id, token, expiry_at) 
VALUES 
  (
    '21f976cb9bfefa8e194457bfe594f758a345e91a1e16d1358bc4429054e6134f', 
    'yYg/eDSJECWc86lt66jVNP2+3xdcPClUC7wlGI0oHTc=', 
    UNIX_TIMESTAMP(NOW()) + 300
  )

Query time 0.00032

Result

int(1)