INSERT INTO cscart_lock_keys (key_id, token, expiry_at) 
VALUES 
  (
    '8450f894b9712f8dd255840ea981fbfbedc68405c220c12714bb970836747eda', 
    'KXjAppFIWaM2pBR0GvNnLK5NkRej6BJSei3c87ONXFM=', 
    UNIX_TIMESTAMP(NOW()) + 300
  )

Query time 0.00027

Result

int(1)