INSERT INTO cscart_lock_keys (key_id, token, expiry_at) 
VALUES 
  (
    '51e68b37cb4da6663b25c13d7a235d02327459695e4286557d4a2930375d026e', 
    'CRrPXqmPDbfHF5iRme8RMeahot3GUXUPH1VrIZO9I6k=', 
    UNIX_TIMESTAMP(NOW()) + 300
  )

Query time 0.00021

Result

int(1)