Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '1dbf35ca1e12b263ade8c4bea7a064e014dcc581bb299aa8e6b1d1f9f99855df' 
  AND token = '0UE4bmbGhnic8fZReClROMiOBEK0+P8Q5JO1AVHYAGQ=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00048

JSON explain

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