Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '59ec90795c0e91d0641d426290a110ac362d03cefa4becc02a970b184d9bb2a3' 
  AND token = 'afEHgA+8Qn562MekjX2BkBJpdaAISfSfqbiM/XhOPsQ=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00028

JSON explain

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