INSERT INTO cscart_lock_keys (key_id, token, expiry_at) 
VALUES 
  (
    '9421f88941caf2d76d32051330430a89c8ee6ec208d2b6e9db4b171d75d0fcc2', 
    '9pJcmUti6YY9WsYLsq9/puxgjJWDWzX8kvbyrfp6e0c=', 
    UNIX_TIMESTAMP(NOW()) + 300
  )

Query time 0.00022

Result

int(1)