Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'f48e3552ee2895aaad39eb1404c49b53854da1f28f0734569704e423b405ba0a' 
  AND token = 'XiLEfuwsRCEGfZjhFBA2eWZjej65pcj0+z1GSqMk1Ik=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00016

JSON explain

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