Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '6a0f2598e766f32f49e64dc9321f184b66a3cba0c11b3cfd62d7af31323c2e82' 
  AND token = '1LNyWg2FbHZiBAgrXpik5BkuIan7u1EEOwUrcqTHmuQ=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00035

JSON explain

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