Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'de8087ea969382014cb8dd98882e4cd282cc1b6f005d9713861524c53c4634ac' 
  AND token = 's/tCMBI4cMR90LQTKb8gK/Mx7c1vA/F00uhJWp2vAX4=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00040

JSON explain

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