Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '05deef3c3ce6a2f2b06da3af6bf930a3f47c619f253a75b9b3552ab95cae3867' 
  AND token = 'ZMyV4Pgag9NDz0AMLFG54OJj6tICjokXOwqKfKOISEg=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00016

JSON explain

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