Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '422786d194bd46a77b9d7f223c04dc6b05212964de67427cf4d098d00f4b49ce' 
  AND token = '9p+WarxUQrF8bgF9H9Tp4tnATiYAfb5XvqaBObmIuRg=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00038

JSON explain

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