Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '7103b731d97f754bf27a42f407a44c39016ac501e7af14280a281fb20753772e' 
  AND token = 'WJFiuXOBINmctf1G9H+UQcsO41hVT2bwD3gW+wooyBQ=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00090

JSON explain

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