Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '160be688801aecacc0ca4d8aecaf15ae3d38cebe0eab6c517c147a3dc0095fbb' 
  AND token = 'lomm2KRNzgLxGctLk+136Djxh3ExOsyeaYBx572ugd0=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00045

JSON explain

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