Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'f085dc2daf09ecd613553bc870aed2a0ac633ab99e53ff9477814e472a30fd28' 
  AND token = '1dZpXdc7D4Dr0UukGoxDP/note3+qvoJX7FRPDxaVHw=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00024

JSON explain

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