Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '034f47254469de071427cb70c43aa7510d518d2ca488d00c07dc9c4b6b93d07e' 
  AND token = 'e6uBvJVncRX2y5buCERET/XXnrWIlbng/pKklAibkww=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00026

JSON explain

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