Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '8103242eeee531b9bebd8b5c19b6a0c4d73ae243273045f050b12765699605f0' 
  AND token = 'z+Jme14J0rxJR3CKM3Ky4WQONUnwS4fQCO8fZy4Zwic=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00022

JSON explain

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