INSERT INTO cscart_lock_keys (key_id, token, expiry_at) 
VALUES 
  (
    '255716154b2082b394f436463ca44cff3b2953d758118755345379162525b729', 
    '+QKLJFbnIHGgn5npK+TMzZ5C09ddS+Y635r2oaqPL74=', 
    UNIX_TIMESTAMP(NOW()) + 300
  )

Query time 0.00034

Result

int(1)