Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '85617922bdf180878de2a838472629ec3d239f997f4377ad62c149a8dbcaef41' 
  AND token = '/y9RoNw/9lP35lXfk8kWs/IgHu+T/y2Ng7E4GJ7EOFo=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00032

JSON explain

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