Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '60b131b95c56ce4b78803e704a568ce72c9879d540f8a445c5eb963244a56071' 
  AND token = 'CXJ0IUJBoVVneQe4pgO85qdGTsBJ1IVu3atMfZPrGpk=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00038

JSON explain

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