Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'a54231d805cf9651d066bccd74cb62819791c4b481a6264b4f8d083a5dc8f9b5' 
  AND token = 'jX/7eKY2I4czYPDKATRiEGakysKmbcFDyIdofOPPjYs=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00030

JSON explain

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