Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '74610c216382cc00d81e289c747bd3e80b0d3983652ad443a09812f57ad53817' 
  AND token = 'bGfNDgHoctXh09gawU6pKcyPGdpx/Y+mxq8lZCcd26k=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00028

JSON explain

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