Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'bd8ca989f88cfb167f6b2b1407234cce68dff2495cc9a4f6d2840e872d97168e' 
  AND token = '4sPGCIVC/SZQF9pPFez60hu8O9WAboJm2S1m6hYvOg0=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00043

JSON explain

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