Sandbox

SELECT 
  1 
FROM 
  cscart_june_setuplock_keys 
WHERE 
  key_id = 'bc4c4bed8a099cf95f097c9165e22e7967c6ee55cdc76db81766b98e18964652' 
  AND token = 'Uvx5TJkwITPeiclvyltHJ2WaEWSNcrJ73OsQbdVZ1Sc=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00025

JSON explain

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