Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '180bfc28ac80b855c21814173fc08080f2bce354e6b4025e040846f8ed555957' 
  AND token = 'z3NG93hTuJ6Y9Pe0jUIDqcEWcqqWvWzvZb9UNu3b5M8=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00019

JSON explain

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