Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'aaadba4400d3de4fc871cea533440380d80773b4c1e1de731e9febfcaa9be5de' 
  AND token = 'HsN0qotQKPPq5cf96y/Vg0rykrJfvz0s9qztuF9tZC4=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00020

JSON explain

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