Sandbox

SELECT 
  1 
FROM 
  cscart_multi_declock_keys 
WHERE 
  key_id = '14835281709e0db321cd9e3a0c67227d0442d719ef71db5455b4ea4e4b585789' 
  AND token = 'Y/FYu4SVojoR2iP9bL7c7GBoSdbhNfJ6t73byzVBAqg=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00028

JSON explain

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