Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '225c11a9575d7354ee409809f1150c7e321971221b0b2dd5d05346c398925a2f' 
  AND token = 'rwtGUB2QAdfFZzAf03+gtuN7MWFNDJ/P/NBBf5OJHaI=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00047

JSON explain

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