Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'a7af75c5ee0a78bd76094a8ed0f107a63a003b54668d2823dcd558376d93f827' 
  AND token = 'EFbtphlMQ34Zffmnk8lmN01vEN7qn6/1RBtA/tqDaew=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00017

JSON explain

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