Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '86ea7ec8fc3b7165ab6de1f830b395e83abd502a85152ab75664b2b852248957' 
  AND token = '05TtsIgIUyCdup8nW3CZyGun3tJY7ll3xiiYe7CZTBU=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00029

JSON explain

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