INSERT INTO cscart_lock_keys (key_id, token, expiry_at) 
VALUES 
  (
    '81bd187516fffe2b09079919f8562003f02e2592ad54a8f5295dfe79826a4d81', 
    'G21LE40KwF1V+MhBkCuQtqdLxr/yhYYwz999joLgWPU=', 
    UNIX_TIMESTAMP(NOW()) + 300
  )

Query time 0.00034

Result

int(1)