Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '6ced1eea338223d232246596716cc78b5d27d82b765714896cf5a1f2be84376e' 
  AND token = '1ypgbuHJe+QsDckXkVZYL19TRp7dWHIsoW3sXEyuyRk=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00038

JSON explain

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