Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '9ceb9eeec58d380d461bc4d56fd69ba091a447b5995ff3e64419d698386665c3' 
  AND token = 'XD7YyU1N48f48y6Me3cvMS/P5MiI442Jv4J3AO3fje0=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00033

JSON explain

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