Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'd10543466ff51692656a3f7cf7c2f399f86528ccd8c94b953c2e710d07886034' 
  AND token = 'igDSJNe8OX2iUx22plzzJbMK5ttcyat4Y6qOLPns8p0=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00021

JSON explain

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