Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '379fc488380750994bf3c5d85e0c2f8a8b19b7255656a79470b90215984e37de' 
  AND token = 'AarXyEK0fXQ2iJax3uCqCJLFAn250RLgcjogPOWL/20=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00025

JSON explain

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