Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '41be7888a04acee8fed825a917a810a0fa7b86f73553dc497c4a6cd961989310' 
  AND token = 'fLD1m70IlulBeyxgSOBpbE0nd4jp6tVCK6M9paHmyeE=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00043

JSON explain

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