Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '5bf504c6fff5d0e29164e3e98160b368b7f94ff0bcb3d41d6fb5191bdecaed73' 
  AND token = 'Vgwdzil336Pu3dxwEF7OLDNJSLyrDdkqPIiRN9sz9WQ=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00022

JSON explain

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