Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '36506c1fa9282c9a128a43893b01e407143ad9dfb949358babb60aad082be3b3' 
  AND token = 'cpYqXPh4PYMrRNDnWtVQ/cMWS2u5X+nBh6d3lhHBLKY=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00037

JSON explain

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