Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '2aeec815a7a78ddeab10a22712118153c2c3006b997ee9eb829a62b24e389b71' 
  AND token = 'ZYGBgvhPpZpn9wiNzv0DIzMsXgQT9biaOxvilzmkPPo=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00030

JSON explain

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