Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '9bb50d3f8f68b9715b13f5e1f463c7a042959141c72be40c82e65af0ff0545ce' 
  AND token = 'CbOvEjex0dnv0mGt77fhqQ3baMJCF98hRyT7qWt7GZ0=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00039

JSON explain

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