INSERT INTO cscart_lock_keys (key_id, token, expiry_at) 
VALUES 
  (
    'a51371255497b4a9e2860242e9fbece009db18f916f7abd712bbf54f519fb647', 
    'h6bWgeLNajBOONslRDrsg/QJGcDF67qS4xsF0hsHbOs=', 
    UNIX_TIMESTAMP(NOW()) + 300
  )

Query time 0.00020

Result

int(1)