Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '6a20784feae310f19545810e76c867da16cda7b1a752c7fb6aa949ec11e8722a' 
  AND token = 'nfWVUo2Hb0spRTMkx9mcIe7pofl4erwcK/GqooFXs1w=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00019

JSON explain

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