Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '8aff217ecf56a4f399842734aa90e2ac91a096e6f2cd4e7cf70d058f94594944' 
  AND token = '+UV7I8yGm56H64h8f+dm2gOi/I/9Untq7HbHIBxy7rM=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00032

JSON explain

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