Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '1ff5bf7a475a9b704bbe035c3a0ad7c0583bc61044aba4b7b4a0fb6ccbd99cc6' 
  AND token = 'X48emSp/fRLvpAdFS4QgllW5lstAA04Ue/w1syaftRU=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00026

JSON explain

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