Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'd57166fa805220e9ee8c0f63f0d5fcafa32e36254bac568c31c927cc6ebb5a3a' 
  AND token = 'B304le5U5063DI90o05OIs969ivwrCXCf040vz/GR4M=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00132

JSON explain

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