Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '2adc44ad6bd5b8d8367b945b741344378a307331cc2cad1b68b384155e47d745' 
  AND token = 'T3UU6T3A/yD3XBvWKyeKm0ZUp0KfAeigmdr9OiZQVus=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00026

JSON explain

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