Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '25517a6fd9e8e3c761457f0c459c0d05f272d7ad99983d855f81ce9076ad3133' 
  AND token = 'Gbse/HmfvCPs4K/gXy8h9COmSrIMdDWOCka0/bNsIzg=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00036

JSON explain

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