INSERT INTO cscart_lock_keys (key_id, token, expiry_at) 
VALUES 
  (
    '50d55979590f1ff207d4d4190f434aac6a7ff306896be2303dc58fc802c68742', 
    'PEYrVbPlcsc58LUTEfVxWMekIzql5eakWrub1Uat0AA=', 
    UNIX_TIMESTAMP(NOW()) + 300
  )

Query time 0.00027

Result

int(1)