INSERT INTO cscart_lock_keys (key_id, token, expiry_at) 
VALUES 
  (
    '50543971b41fb9bcaeae1c17041dc5d3abe21c5dc112b178004a0612a8493403', 
    '6UDdMNEQnAMLYIP907M92w4EWDt6BCHyWSjFQlBEutM=', 
    UNIX_TIMESTAMP(NOW()) + 300
  )

Query time 0.00038

Result

int(1)