Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = 'df72974c1cc448e919a1e075dc9adb5870479b7d0abd77195ea54f8ebcc70958' 
  AND token = 'F3otyeFSmgEobK6G7w56qkEdqXJd6uhsmUrljTs5aIY=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00036

JSON explain

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