INSERT INTO cscart_lock_keys (key_id, token, expiry_at) 
VALUES 
  (
    '51ad51e04405c592b9513b18b875421ff557915886155fb503dc004a2739ca9f', 
    'S6wn4alHMZtsqg2KQJg6JxY2f94mjyooFbKvRrXFMMU=', 
    UNIX_TIMESTAMP(NOW()) + 300
  )

Query time 0.00049

Result

int(1)