INSERT INTO cscart_multi_declock_keys (key_id, token, expiry_at) 
VALUES 
  (
    '520ed78d490a3a376eed6657aae2aa843690aabc36fad94073286975bc5ce919', 
    'DwyJgWcfMgTKOKt1y4jGMauJgP+2N3jVCt7usS1Plso=', 
    UNIX_TIMESTAMP(NOW()) + 300
  )

Query time 0.00028

Result

int(1)