Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '1baad19899c40d348f113811660ff6778d9844f9beedbe14ef44795c9e263863' 
  AND token = 'z9SK4n1PHlwxylPN4RZdCX25JM3TGdLv49R80tZE/jo=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00040

JSON explain

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