Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '6c0d3f9a0e2c0d5c7d2c1374792096bb119b80bb18443047167139c0bb33b2d5' 
  AND token = 'Wz11GVO52dWfcg19vcpvqNzar62x0qaOR3Ia4HFofaA=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00027

JSON explain

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