INSERT INTO cscart_lock_keys (key_id, token, expiry_at) 
VALUES 
  (
    'f51935c74e025c2db001db0b231ed29d410e2adc4a424214dacf68f4f09120e2', 
    'WaT8+yRnbWjUfyvOhMGE4makuxEKz4ChAF6je3gznVc=', 
    UNIX_TIMESTAMP(NOW()) + 300
  )

Query time 0.00021

Result

int(1)