SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '5e82cc4ef61a557f9ba6e53696154c24e1c984f6ca601287d3cb262390b772bb' 
  AND token = 'Q6AekdrhJuefDgzGx9/OB2XZ+WdGmTQ9nZg5q+gBl1k=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00023

JSON explain

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