Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'c1375c4aaa7cad4ad983976b9feec3902fbe067459a7800b12fd697f0f08ffd7' 
  AND token = 'CJp4CargJ2f87K1Pu5/YES1ZzjXMrnP5lY9GJXXO9jI=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00030

JSON explain

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