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SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = 'f3bceddf94c1925bdd66f0b5d4cbfd46e8f6234a038d398a5aa70bdad40107ae' 
  AND token = 'XlX17l7lG3FQOXQ/LZJsA2M1aGmzZncuai/6LBoHy1A=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00025

JSON explain

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