Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'ab632030124270dfe1bed17fe0dec2e6c66874b083523bc39fb122760087b2ab' 
  AND token = 's1OaFIQ2GjugrZrUREkbq/onUEKUjCg4zVxxQ8lwtlk=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00010

JSON explain

{
  "query_block": {
    "select_id": 1,
    "table": {
      "message": "Impossible WHERE noticed after reading const tables"
    }
  }
}