Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '0106e111610bcfaad510645dcaca22c1fb3ca1fb3eed9b81cd5edfb30f3480f3' 
  AND token = 'KAoHsKc3Ce+KFZp+QonhKA4PCiceZ0i2lpY5fuktY6w=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00026

JSON explain

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