Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '7f89d254c620e0ffc2755162e65c15862498520b5c6046a6205aee5f62f9ae24' 
  AND token = '79ocG9hpJWCDZ65ezyX+NEpLOvh3RU+YD7Bk5s9+m20=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00067

JSON explain

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