Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '07b0838aeffcae945aa12373762a46c5997cc6019c282e1c55ed4808005507d5' 
  AND token = 'bn5R43YCkuuQWy2Yne9UMA/ElisdcKeSmoFQINZekv4=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00020

JSON explain

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