INSERT INTO cscart_lock_keys (key_id, token, expiry_at) 
VALUES 
  (
    '51c3d390e1694cf8695777635792dd731625a533d1ce361e34b60edd3c90506d', 
    'RVkFrWzAzCwessqaEuOYOkB97oe/APzCaz2A4OLyOH0=', 
    UNIX_TIMESTAMP(NOW()) + 300
  )

Query time 0.00010

Result

int(1)