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SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '13cf483c32a2971c08f6c685182f2a1e07899157b91c5417af62afefbde007f0' 
  AND token = 'tWTi6f94D0Vfp4Iatt45cyBQfKFG4HPNkR9u/PpSlBQ=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00023

JSON explain

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