INSERT INTO cscart_lock_keys (key_id, token, expiry_at) 
VALUES 
  (
    '51c0b18eeacea98a643ec1a35401262b6bbd247994d114d33481a09736a6ca2d', 
    '4hWKgEER1S/5STug2EFqsrxU+jUscsUryo3BH8yb7CE=', 
    UNIX_TIMESTAMP(NOW()) + 300
  )

Query time 0.00043

Result

int(1)