Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '787af27c4d31b65c6de58cf11c6331101dd3cd015ebb5431b6c1e9d5c19aab1d' 
  AND token = 'nyNGxPHXf32Nur6je8hh+/Qe551nODhvJ1Bff3HcF/g=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00026

JSON explain

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