Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '2c18db1ddecf24ef96a0e149c9781769c9f944454a6e3801917798c0c224e9d9' 
  AND token = 'DxmPvMyqLmp9HqygkGIuRDk8Jd590Ah7E3cPJ/knAFs=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00024

JSON explain

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