Sandbox

SELECT 
  1 
FROM 
  cscart_june_setuplock_keys 
WHERE 
  key_id = '52f4f94a2d0f12a9e78fca51dc72051a05bc3ff32ee069c592a9f980e794686c' 
  AND token = '4KzKCn71us7EHIStgeKs8XHkbFvXQFHTPF+0sR5+eoc=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00040

JSON explain

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