Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '1931cdf40324e17a1ec295bf435a34f6c038a5befa1506db40e59131932f817d' 
  AND token = 'hQzb73uASA08PzOoLILi3nHM1hpi0UgRVrn9smWthJ8=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00040

JSON explain

{
  "query_block": {
    "select_id": 1,
    "table": {
      "message": "Impossible WHERE noticed after reading const tables"
    }
  }
}