Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = 'd130182c950249e183f1cd7acb942efd7660fe697daf21af7a302ddaf4627384' 
  AND token = 'llBBVqGEeoWBgsjhv3dXW7dzmp48yx2C2fxdTrGl7OA=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00025

JSON explain

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