Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'eab341a6cd53f99baa7ca08e8cf08585c687724db0a130fbcae57bcbb33586b7' 
  AND token = 'o4+erlYX1XEpeSfnPVhNnMrPFwrsigFXlIRy6wbjl+8=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00029

JSON explain

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