Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '5ad0caad7af2aaaaafd737716021d9506d0684d774f458e35805b860cd31c2ed' 
  AND token = 'pPejCeQpT6qvlmNLgBdmDjZa17+B/gguUsT+6evwSUE=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00026

JSON explain

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