Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'f94a139772e16934af6fe52774bb71bfe3861765c55731fa133b0edd2819ef5b' 
  AND token = 'TOu6VxK3UiHBa0wMo4uOxkBIi5TfdTmFy0/ObD6WewY=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00013

JSON explain

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