Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'e091b960a5969a36c1073e2bfef367e0817d1d096e293427f8835e0b19b6ba87' 
  AND token = 'Pcof2E56kwfcLcDsDkSPtPIewEksBCqUAS9rB5m4fWo=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00028

JSON explain

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