Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '7175dbc22c3ccb86dd1680967add435b75267c33052af5c6785d68aa30446b1c' 
  AND token = 'LcmsuNhRYYl8o6++TPuiAFR0Ts/gocLkq1/8GmQngcE=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00030

JSON explain

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