Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '473e88ccc7519563a3d63e98f97de8a80ef5da03faace4924b7037329a98dd30' 
  AND token = 'mxG4REvWX4EeNeBtHdSCXikNzV1HqhE2C5Ui3Lkmo7I=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00045

JSON explain

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