Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'cd2d535296cdf7ef8989d352fe39fd14370dd61482836576b5bd2a6461c62109' 
  AND token = 'c0ZV88fDgTooB8LoXWBR/pmJ2wMt+8C6kpNMHn35yvc=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00018

JSON explain

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