Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'f7f8de9f7c86832aa203b477a4b143fb545c0c48e40d9940e448ddc1e7071e45' 
  AND token = 'onoXshTH2SNvts7U+k6o//FE/ulJviL4cRPg/1D7kMo=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00033

JSON explain

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