Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '9098a6d2f09102ac78a7dc9272675f18ac825838aa94ced51f94c396ff1f1cd3' 
  AND token = 'kb6MsR5xIgK9tCXKOFRLUibqo9ddIaUeC6ekeGGc3k4=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00043

JSON explain

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