INSERT INTO cscart_lock_keys (key_id, token, expiry_at) 
VALUES 
  (
    '8738589310b9a232a9e72b86f9e1c48e93020aef181516a1854fb5e0bea7c399', 
    'DZ1ii6UUJRI6hXfDY8x19N8XEIjeZT87zauE06Ay/u0=', 
    UNIX_TIMESTAMP(NOW()) + 300
  )

Query time 0.00022

Result

int(1)