Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '884f27085b594cee1551cac59e5db1a97997b5079414ed597e507b0bdfbb8be1' 
  AND token = 'uo3Yz6OjPYqCI25NegcL7PE4h5e+vBH9f1iuL9vtO9s=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00030

JSON explain

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