Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '77ad7f2b9afe6c38e2bcb189f1a29772bde45c697d7f97006adaeb37d174929e' 
  AND token = 'yuNCQ+yZebj55UaPgREFFclguNN44FUA2oEljp+GNZo=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00020

JSON explain

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