Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = 'f59ebe77f292a63618118171d14aea4c063a0b10c852ea03804f74210c05688f' 
  AND token = 'cMC9tg8R6bfrnFxjBi7kaWdq+m5qWF8RUNSWxNJh80c=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00034

JSON explain

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