Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'c92fbe516170c18352b0e35ea1af3cf87ec61cdb00f00d3a268172dfd778a718' 
  AND token = 'ZqlTuyNffwKlHU2YXcG9hnJSCfyvNBxMB0rJ06Kl0MY=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00050

JSON explain

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