Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'eca2642871999d2acea710fc630f245ae87182585619b7fb66097fc67421f383' 
  AND token = 'soLd03tNy0cvntGiktqQTDpGL9kdcPLNl3Qnvm0kN5w=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00029

JSON explain

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