Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = 'eb4d0fb769c81be9804aba1ec16096aaa22c941a18f001c3bc9b754d687718c8' 
  AND token = 'Yys2S/6NrQpzV4V1PwLh9fXuI93OHejovNNKwWA9xgA=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00019

JSON explain

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