INSERT INTO cscart_multi_declock_keys (key_id, token, expiry_at) 
VALUES 
  (
    '8ecac1839312d02edf76e7f723980a02383b59a4f0eaaf76a9376d51238431c6', 
    'nm5xDvzRSijyhmC6p2iOOynUrrSy3U8PQAbktcjjmUY=', 
    UNIX_TIMESTAMP(NOW()) + 300
  )

Query time 0.00033

Result

int(1)