Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '48f29e8d7960c919a7280a8dc62ee59f7e38c280dc425aec531bffa6051c9dc5' 
  AND token = 'bFSLawh9yfNHMO18lMviMLpgpcCt4YlhSVxR3HhX+Ds=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00030

JSON explain

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