Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '69cd19db2797c5779792586cd306cbe3d8a54ba3ffe45768ee016325daaeb90f' 
  AND token = 'Jdi4VzdG8FSGNUL67roeDLDrQ5Q5Hu6wiDyHfqYUs6o=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00091

JSON explain

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