SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '287e9d2b4b9237526d36b8b611a0ec206cf682157d626f90343587ffb80fb718' 
  AND token = 'VvK5Y5yAhJJQ8q0UWP9rMUtpY4LJ9ZoVEaItzJZ6O5w=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00027

JSON explain

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