Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '683a5149d97fe3f6667374c1bc08a10605ca9ac58472f9bc4086f82e8a829cc3' 
  AND token = 'v9Pvc5c29+qG/bZMC4Q/dvzLMQVANM0x8YqviDHc4Hw=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00020

JSON explain

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