Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'd60915ead128a3fa695530a6887d2ed54695036cb9fc195dbec8c315ff451f32' 
  AND token = 'ZnkQxsAbYlzPkbJ43HIGUC/dEmfOQk/ubv6a9i6BAwA=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00019

JSON explain

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