Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '67c069b9c5e7fcba0f7067f3699411cdd684ba202f7604fcf02fcec70634c388' 
  AND token = 'BqzcccCGP1icnPdeeVTEPBEYSDANYWyciJ8auHQHVjs=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00022

JSON explain

{
  "query_block": {
    "select_id": 1,
    "message": "no matching row in const table"
  }
}