Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'a7d81be3fde4182a54c1d9418c4f13afda309f84a2879189a938875f0a662f3f' 
  AND token = 'gTxrvofK1lcWBLfWA0Cc+HPdD7m9Qm6woepwIXgx3G8=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00021

JSON explain

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