Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '000d564f6fe1e4dd64d545435a13a381c8c50917faeef60495cbe1046b06f860' 
  AND token = 'Tyx/MM7amfGypEwRy6mLKRaqASkAbeOwhWMnHtsTRuo=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00046

JSON explain

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