Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '601e55157dcc2e559d886a3d87bc49dbcaaa6cc2b272aeecdde2aaaf93d4633a' 
  AND token = 'ZerKWJX4bOneJoUW+QMiYhQGssD97K069T+mGqmPeno=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00019

JSON explain

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