Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '1206c11173ed85088cb7267d05ed29d477bb82158b789a55206002e58d23e559' 
  AND token = '+j3vmLr4V6PygBDs8v/omteYfH04dUtXY2Zm1b53AXk=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00047

JSON explain

{
  "query_block": {
    "select_id": 1,
    "table": {
      "message": "Impossible WHERE noticed after reading const tables"
    }
  }
}