Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '491b5d7a0c1c47adda476979da2a7ac2fe3816f1087044782aff17308f2bef21' 
  AND token = 'Kn3evxzl6zEz9yxqn2VOqnWo9D/Ep0ghzRmAS9LxhPc=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00015

JSON explain

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