Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '0f6880d36a569cc1796413e4de6bd68041e8027a5b0f5766aacde4648a6c40d0' 
  AND token = 'sDK5JsJF1adVeRRu7MRoeAeYjTjFAtSE40HNP3EKDqU=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00037

JSON explain

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