INSERT INTO cscart_lock_keys (key_id, token, expiry_at) 
VALUES 
  (
    '18d7e5a0512f5a3f31f231b684763965545c9b74a37b3810c1ed826b467feb50', 
    'SGb4xFAIqO4vjyvt7zTqR1QsRk3NGZqm7vs0OKbIOsI=', 
    UNIX_TIMESTAMP(NOW()) + 300
  )

Query time 0.00036

Result

int(1)