SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '487673a7fb0997cf824a9bbb1c705172ae4d933917d1e1b3705e8d9465841c89' 
  AND token = 'QWdJqHstoEgkECIV2CGOH8g2G8Syh/wm7ChnfmZ2k8s=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00040

JSON explain

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