Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '284e56490af2d70ceaa96c0e5ac928b91d700604c49c76030732ca156112e926' 
  AND token = 'qoIPJPD4t8r7MS9su0bkRuMXKPZzH620O7n4Xtfx5SQ=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00039

JSON explain

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