Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '29384aeae81dbdf424b5c0cfc3a9d15e705f906511b8729174493a5a6298d384' 
  AND token = 'kPDLRnHV67KAksHUaxu07NMkxvRncvxVP/saZHyTr/E=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00031

JSON explain

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