Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '90b59eb36c63bb42d3e7cc2bbc6383c3ab7ec179cd55be8d531e7e9d675c5769' 
  AND token = 'wPp+QbvoZwj7/cGUKwpou92tf+tK0/9uyYR+OXPYDJs=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00029

JSON explain

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